Keywords
TiO2-based nanofluid
thermo-physical property
one-step synthesis
two-step synthesis
How to Cite
Abstract
Titanium dioxide (TiO2) is extensively employed due to its distinctive attractive thermal and physical characteristics. Various techniques, encompassing both single-step and two-step methods, have been utilized by researchers for the preparation of TiO2-based nanofluids. In its natural state, TiO2 is found in three crystalline forms: anatase, brookite, and rutile. However, the direct application of nanoparticles in heat transfer scenarios presents a considerable challenge, compelling scientists to seek out stable nanofluid preparation techniques. Nanofluids have gained recognition as promising thermodynamic fluids, largely because of their impressive attributes in thermal convection, conduction, stability, and heat transfer. An exponential surge in research has been observed concerning their thermo-physical properties, potential advantages, and applications. While numerous reviews strive to deliver comprehensive summaries on the preparation, characteristics, heat transfer, and application performance of diverse nanofluids, the sheer volume of existing literature makes this a daunting task. Therefore, a selective yet thorough summary that focuses on a specific aspect of a particular nanofluid is highly valuable. This review concentrates on the heat transfer characteristics of TiO2-based nanofluid, which is regarded as one of the most practical options for real-world applications owing to its superior dispersibility, chemical stability, and non-toxic properties. Ultimately, this review paper aims to provide a wide-ranging overview of the research progress in the heat transfer applications of TiO2-based nanofluids.
References
Abdolbaqi, M. Kh., Azwadi, C. S. N., Mamat, R., Azmi, W. H., & Najafi, G. (2015). Nanofluids heat transfer enhancement through straight channel under turbulent flow. International Journal of Automotive and Mechanical Engineering, 11, 2294–2305. https://doi.org/10.15282/ijame.11.2015.12.0193
Afrand, M., Najafabadi, K. N., Sina, N., Safaei, M. R., Kherbeet, A. S., Wongwises, S., & Dahari, M. (2016). Prediction of dynamic viscosity of a hybrid nano-lubricant by an optimal artificial neural network. International Communications in Heat and Mass Transfer, 76, 209–214. https://doi.org/10.1016/j.icheatmasstransfer.2016.05.023
Ahmed, S. A., Ozkaymak, M., Sözen, A., Menlik, T., & Fahed, A. (2018). Improving car radiator performance by using TiO2-water nanofluid. Engineering Science and Technology, An International Journal, 21(5), 996–1005. https://doi.org/10.1016/j.jestch.2018.07.008
Aksoy, Y. T., Zhu, Y., Eneren, P., Koos, E., & Vetrano, M. R. (2021). The impact of nanofluids on droplet/spray cooling of a heated surface: A critical review. Energies, 14(1), 80. https://doi.org/10.3390/en14010080
Al-Araji, K. M., Hachim, D. M., & Almoussawi M. A. (2021). Nano-fluids as a coolant for automotive engine radiators: review study. Al-Furat Journal of Innovations in Mechanical and Sustainable Energy Engineering, 1(2), 64-78. https://dx.doi.org/10.52262/130221-0
Ali, A. R. I., & Salam, B. (2020). A review on nanofluid: preparation, stability, thermophysical properties, heat transfer characteristics and application. SN Applied Sciences, 2(10), Article 1636. https://doi.org/10.1007/S42452-020-03427-1
Arani, A. A. A., & Amani, J. (2013). Experimental investigation of diameter effect on heat transfer performance and pressure drop of TiO2 –water nanofluid. Experimental Thermal and Fluid Science, 44, 520–533. https://doi.org/10.1016/j.expthermflusci.2012.08.014
Armstrong, M., Subramanian, M. S., Selvapalam, N. (2020). A review on the enhancement of heat exchanging process using TiO2 nanofluids. In L. J. Yang, A. Haq, L. Nagarajan, L. (Eds.), Proceedings of ICDMC 2019. Lecture Notes in Mechanical Engineering (pp. 607-620). Springer. https://doi.org/10.1007/978-981-15-3631-1_58
Avsec, J., & Oblak, M. (2007). The calculation of thermal conductivity, viscosity and thermodynamic properties for nanofluids on the basis of statistical nanomechanics. International Journal of Heat And Mass Transfer, 50(21-22), 4331–4341. https://doi.org/10.1016/j.ijheatmasstransfer.2007.01.064
Aydın, D.Y., & Gürü, M. (2021). Nanofluids: Preparation, stability, properties, and thermal performance in terms of thermo-hydraulic, thermodynamics and thermo-economic analysis. Journal of Thermal Analysis and Calorimetry, 147, 7631-7664. https://doi.org/10.1007/S10973-021-11092-8
Azmi, W. H., Hamid, K.A., Mamat, R., Sharma, K. V., & Mohamad, M. S. (2016). Effects of working temperature on thermo-physical properties and forced convection heat transfer of TiO2 nanofluids in water – ethylene glycol mixture. Applied Thermal Engineering, 106, 1190–1199. https://doi.org/10.1016/j.applthermaleng.2016.06.106
Bahiraei, M., Hosseinalipour, S. M., Zabihi, K., & Taheran, E. (2012). Using neural network for determination of viscosity in water-TiO2 nanofluid. Advances In Mechanical Engineering, 4, Article 742680. https://doi.org/10.1155/2012/742680
Batmunkh, M., Tanshen, Md. R., Nine, Md. J., Myekhlai, M., Choi, H., Chung, H., & Jeong, H. (2014). Thermal conductivity of TiO2 nanoparticles based aqueous nanofluids with an addition of a modified silver particle. Industrial & Engineering Chemistry Research, 53(20), 8445–8451. https://doi.org/10.1021/Ie403712f
Behnajady, M. A., Eskandarloo, H., Modirshahla, N., & Shokri, M. (2011). Investigation of the effect of sol–gel synthesis variables on structural and photocatalytic properties of TiO2 nanoparticles. Desalination, 278(1-3), 10–17. https://doi.org/10.1016/j.desal.2011.04.019
Bhattacharyya, S. C., & Timilsina, G. R. (2010). A review of energy system models. International Journal of Energy Sector Management, 4(4), 494–518. https://doi.org/10.1108/17506221011092742
Birlik I., Azem, N. Yi̇ği̇t, R. Erol, M., Yıldırım, S., Yurddaşkal, M., Sancakoğlu, O. & E. Çeli̇k. (2014). Preparation and characterization of TiO2 nanofluid by sol-gel method for cutting tools. AKU J. Sci. Eng., 14, 453-460.
Bobbo, S., Fedele, L., Benetti, A., Colla, L., Fabrizio, M., Pagura, C., & Barison, S. (2012). Viscosity of water based SWCNT and TiO2 nanofluids. Experimental Thermal and Fluid Science, 36, 65–71. https://doi.org/10.1016/j.expthermflusci.2011.08.004
Bruggeman, D. A. G. (1935). Berechnung Verschiedener Physikalischer Konstanten Von Heterogenen Substanzen. I. Dielektrizitätskonstanten Und Leitfähigkeiten Der Mischkörper Aus Isotropen Substanzen. Annalen Der Physik, 416(8), 665–679. https://doi.org/10.1002/andp.19354160802
Cabaleiro, D., Pastoriza-Gallego, M. J., Gracia-Fernández, C., Piñeiro, M. M., & Lugo, L. (2013). Rheological and volumetric properties of TiO2-ethylene glycol nanofluids. Nanoscale Research Letters, 8, Article 286. https://doi.org/10.1186/1556-276x-8-286
Celata, G. P., D’Annibale, F., Mariani, A., Saraceno, L., D’Amato, R., & Bubbico, R. (2013). Heat transfer in water-based sic and TiO2 nanofluids. Heat Transfer Engineering, 34(13), 1060–1072. https://doi.org/10.1080/01457632.2013.763542
Chandrasekar, M., Suresh, S., Srinivasan, R. & Bose, A. C. (2009). New analytical models to investigate thermal conductivity of nanofluids. Journal of Nanoscience and Nanotechnology, 9(1), 533–538. https://doi.org/10.1166/jnn.2009.J025
Chang, H., & Lin, S. C. (2007). Fabrication method for a TiO2 nanofluid with high roundness and superior dispersion properties. Materials Transactions, 48(4), 836–841. https://doi.org/10.2320/matertrans.48.836
Chang, H., & Liu, M. K. (2007). Fabrication and process analysis of anatase type TiO2 nanofluid by an arc spray nanofluid synthesis system. Journal of Crystal Growth, 304(1), 244–252. https://doi.org/10.1016/j.jcrysgro.2007.02.009
Chen, H., Ding, Y., & Tan, C. (2007a). Rheological behaviour of nanofluids. New Journal of Physics, 9(10), 367–367. https://doi.org/10.1088/1367-2630/9/10/367
Chen, H., Ding, Y., He, Y., & Tan, C. (2007b). Rheological behaviour of ethylene glycol based titania nanofluids. Chemical Physics Letters, 444(4-6), 333–337. https://doi.org/10.1016/j.cplett.2007.07.046
Chen, W. C., & Cheng, W. T. (2016). Numerical simulation on forced convective heat transfer of titanium dioxide/water nanofluid in the cooling stave of blast furnace. International Communications in Heat and Mass Transfer, 71, 208–215. https://doi.org/10.1016/j.icheatmasstransfer.2015.12.020
Chevalier, J., Tillement, O., & Ayela, F. (2009). Structure and rheology of SiO2 nanoparticle suspensions under very high shear rates. Physical Review E, 80(5), Article 051403. https://doi.org/10.1103/physreve.80.051403
Choi, S. U. S., & Eastman, J. A. (1995). Enhancing thermal conductivity of fluids with nanoparticles. https://www.osti.gov/servlets/purl/196525
Corcione, M. (2011). Empirical correlating equations for predicting the effective thermal conductivity and dynamic viscosity of nanofluids. Energy Conversion and Management, 52, 789–793. https://doi.org/10.1016/j.enconman.2010.06.072
Corradi, A. B., Bondioli, F., Focher, B., Ferrari, A. M., Grippo, C., Mariani, E., & Villa, C. (2005). Conventional and microwave-hydrothermal synthesis of TiO2 nanopowders. Journal of the American Ceramic Society, 88(9), 2639–2641. https://doi.org/10.1111/j.1551-2916.2005.00474.X
Čenovar, A., Paunović, P., Grozdanov, A., Makreski, P., & Fidančevska, E. (2012). Preparation of nano-crystalline TiO2 by sol-gel method using titanium tetraisopropoxide (TTIP) as a precursor. Advances in Natural Science: Theory & Applications, 1(2),133–142.
Duangthongsuk, W., & Wongwises, S. (2009). Measurement of temperature-dependent thermal conductivity and viscosity of TiO2 -water nanofluids. Experimental Thermal and Fluid Science, 33(4), 706–714. https://doi.org/10.1016/j.expthermflusci.2009.01.005
Duangthongsuk, W., & Wongwises, S. (2015). A Comparison of the heat transfer performance and pressure drop of nanofluid-cooled heat sinks with different miniature pin fin configurations. Experimental Thermal and Fluid Science, 69, 111–118. https://doi.org/10.1016/J.Expthermflusci.2015.07.019
Dushyanthkumar, G. L., Praveenkumara, B. M., Shivashankar, R., Shrinivasa, D., & Muthuraju, N. P. (2024). experimental investigation of the enhancement of heat transfer rate in automobile radiator using low concentration hybrid nanofluids. Journal of Mines, Metals and Fuels, 72(11), 1187–1202. https://doi.org/10.18311/Jmmf/2024/46001
Ebrahimnia-Bajestan, E., Charjouei Moghadam, M., Niazmand, H., Daungthongsuk, W., & Wongwises, S. (2016). Experimental and numerical investigation of nanofluids heat transfer characteristics for application in solar heat exchangers. International Journal of Heat and Mass Transfer, 92, 1041–1052. https://doi.org/10.1016/j.ijheatmasstransfer.2015.08.107
Eiamsa-Ard, S., & Kiatkittipong, K. (2014). Heat transfer enhancement by multiple twisted tape inserts and TiO2/water nanofluid. Applied Thermal Engineering, 70(1), 896–924. https://doi.org/10.1016/j.applthermaleng.2014.05.062
Eid, M. R., & Al-Hossainy, A. F. (2020). Synthesis, DFT calculations, and heat transfer performance large-surface TiO2: ethylene glycol nanofluid and coolant applications. The European Physical Journal Plus, 135(7), Article 596. https://doi.org/10.1140/epjp/S13360-020-00599-y
Elanjeitsenni, V. P., Vadivu, K. S., & Prasanth, B. M. (2022). A review on thin films, conducting polymers as sensor devices. Materials Research Express, 9, Article 022001. https://doi.org/10.1088/2053-1591/ac4aa1
Elibol, E. A., Turgut, O., Aktas, F., Senol, H., & Celik, A. F. (2022). Experimental investigation on heat transfer and flow characteristics of TiO2-water nanofluid in a heavy vehicle radiator. Journal of Thermal Analysis and Calorimetry, 148(3), 977–994. https://doi.org/10.1007/S10973-022-11817-3
Elsalamony, R. A., Morsi, R. E., & Alsabagh, A. M. (2015). Preparation, stability and photocatalytic activity of titania nanofluid using gamma irradiated titania nanoparticles by two-step method. In R. A. Elsalamony, R. E. Morsi, A. M. Alsabagh (Eds.). Egyptian Petroleum Research Institute (EPRI) (pp. 1–13).
Evans, W., Prasher, R., Fish, J., Meakin, P., Phelan, P., & Keblinski, P. (2008). Effect of aggregation and interfacial thermal resistance on thermal conductivity of nanocomposites and colloidal nanofluids. International Journal of Heat and Mass Transfer, 51(5-6), 1431-1438. https://doi.org/10.1016/j.ijheatmasstransfer.2007.10.017
Fan, X., Chen, H., Ding, Y., Plucinski, P. K., & Lapkin, A. A. (2008). Potential of “Nanofluids” to further intensify microreactors. Green Chemistry, 10, 670-677. https://doi.org/10.1039/B717943j
Fedele, L., Colla, L., & Bobbo, S. (2012). Viscosity and thermal conductivity measurements of water-based nanofluids containing titanium oxide nanoparticles. International Journal of Refrigeration, 35(5), 1359–1366. https://doi.org/10.1016/j.ijrefrig.2012.03.012
Ghadimi, A., & Metselaar, I. H. (2013). The influence of surfactant and ultrasonic processing on improvement of stability, thermal conductivity and viscosity of titania nanofluid. Experimental Thermal And Fluid Science, 51, 1–9. https://doi.org/10.1016/j.expthermflusci.2013.06.001
Grant, F. A. (1959). Properties of rutile (titanium dioxide). Reviews of Modern Physics, 31(3), 646–674. https://doi.org/10.1103/revmodphys.31.646
Guo, Z. (2019). A review on heat transfer enhancement with nanofluids. Journal of Enhanced Heat Transfer, 27(1), 1-70. https://doi.org/10.1615/Jenhheattransf.2019031575
Hafeez, M. B., Amin, R., Nisar, K. S., Jamshed, W., Abdel-Aty, A.-H., & Khashan, M. M. (2021). Heat transfer enhancement through nanofluids with applications in automobile radiator. Case Studies in Thermal Engineering, 27, Article 101192. https://doi.org/10.1016/j.csite.2021.101192
Hamid, K.A., Azmi, W. H., Mamat, R., Usri, N. A., & Najafi, G. (2015). Effect of temperature on heat transfer coefficient of titanium dioxide in ethylene glycol-based nanofluid. Journal of Mechanical Engineering and Sciences, 8, 1367–1375. https://doi.org/10.15282/jmes.8.2015.11.0133
Hamilton, R. L., & Crosser, O. K. (1962). Thermal conductivity of heterogeneous two-component systems. Industrial & Engineering Chemistry Fundamentals, 1(3), 187–191. https://doi.org/10.1021/I160003a005
Hasan, Md. M., Rahman, Md. M., Rahman, Md. A., Bakar, S. A., Islam, M. S., & Khalifa, T. (2024). Artificial intelligent model to enhance thermal conductivity of TiO2 - Al2O3/water-ethylene glycol-based hybrid nanofluid for automotive radiator. IEEE Access, 12, 179164–179189. https://doi.org/10.1109/access.2024.3496786
Hatami, M., Hasanpour, M., & Jing, D. (2020a). Recent developments of nanoparticles additives to the consumables liquids in internal combustion engines: Part I: Nano-fuels. Journal of Molecular Liquids, 318, Article 114250. https://doi.org/10.1016/j.molliq.2020.114250
Hatami, M., Hasanpour, M., & Jing, D. (2020b). Recent developments of nanoparticles additives to the consumables liquids in internal combustion engines: Part II: Nano-lubricants. Journal of Molecular Liquids, 319, Article 114156. https://doi.org/10.1016/j.molliq.2020.114156
He, Y., Jin, Y., Chen, H., Ding, Y., Cang, D., & Huilin, L. (2007). Heat transfer and flow behaviour of aqueous suspensions of TiO2 nanoparticles (nanofluids) flowing upward through a vertical pipe. International Journal of Heat and Mass Transfer, 50(11-12), 2272–2281. https://doi.org/10.1016/j.ijheatmasstransfer.2006.10.024
Hejazian, M., & Moraveji, M. K. (2013). A comparative analysis of single and two-phase models of turbulent convective heat transfer in a tube for TiO2 nanofluid with CFD. Numerical Heat Transfer, Part A: Applications, 63(10), 795–806. https://doi.org/10.1080/10407782.2013.756759
Hojjat, M., Etemad, S.G., Bagheri, R., & Thibault, J. (2011). Thermal conductivity of non-newtonian nanofluids: Experimental data and modeling using neural network. International Journal of Heat and Mass Transfer, 54(5-6), 1017–1023. https://doi.org/10.1016/j.ijheatmasstransfer.2010.11.039
Hu, Y., He, Y., Wang, S., Wang, Q., & Schlaberg, H. I. (2013). Experimental and Numerical Investigation on Natural Convection Heat Transfer of TiO2 –Water Nanofluids in A Square Enclosure. ASME Journal of Heat and Mass Transfer, 136(2), Article 022502. https://doi.org/10.1115/1.4025499
Huang, X., & Zhang, W. (2008). Study on successive preparation of nano-TiO2 ethanol colloids by pulsed laser ablation and fluorescence property. Applied Surface Science, 254(11), 3403–3407. https://doi.org/10.1016/j.apsusc.2007.11.027
Hussein, A. M., Dawood, H. K., Bakara, R. A., & Kadirgamaa, K. (2017). Numerical study on turbulent forced convective heat transfer using nanofluids TiO2 in an automotive cooling system. Case Studies in Thermal Engineering, 9, 72–78. https://doi.org/10.1016/j.csite.2016.11.005
Islam, M. R., Shabani, B., & Rosengarten, G. (2017). Electrical and thermal conductivities of 50/50 water-ethylene glycol based TiO2 nanofluids to be used as coolants in pem fuel cells. Energy Procedia, 110, 101–108. https://doi.org/10.1016/j.egypro.2017.03.113
Jadeja, K. M., Bumataria, R., & Chavda, N. (2022). Nanofluid as a coolant in internal combustion engine – A review. International Journal of Ambient Energy, 44(1), 363–380. https://doi.org/10.1080/01430750.2022.2127891
Jarahnejad, M., Haghighi, E. B., Saleemi, M., Nikkam, N., Khodabandeh, R., Palm, B., Toprak, M. S., & Muhammed, M. (2015). Experimental investigation on viscosity of water-based Al2O3 and TiO2 Nanofluids. Rheological Acta, 54(5), 411–422. https://doi.org/10.1007/S00397-015-0838-Y
Jiang, H., Zhang, Q., & Shi, L. (2015). Effective thermal conductivity of carbon nanotube-based nanofluid. Journal of The Taiwan Institute of Chemical Engineers, 55, 76–81. https://doi.org/10.1016/j.jtice.2015.03.037
Jwo, C. S., Tien, D. C., Teng, T. P., Chang, H., Tsung, T. T., Liao, C. Y., & Lin, C. H. (2005). Preparation and UV characterization of TiO2 nanoparticles synthesized by SANSS. Reviews on Advanced Materials Science, 10(3), 283–288.
Kadhim, S. A., Hammoodi, K. A., Askar, A. H., Rashid, F. L., & Abdul Wahhab, H. A. (2024). Feasibility review of copper oxide nanofluid to improve heat transfer in the double-tube heat exchanger. Results in Engineering, 24, Article 103227. https://doi.org/10.1016/j.rineng.2024.103227
Kavitha, T., Rajendran, A., & Durairajan, A., (2013). Synthesis and characterization of TiO2 nanopowders and TiO2-SiO2 nanocomposite by sol-gel technique. Elixir Nano Composite Materials (Elixir International Journal), 59, 15919-15922.
Kayhani, M. H., Soltanzadeh, H., Heyhat, M. M., Nazari, M., & Kowsary, F. (2012). Experimental study of convective heat transfer and pressure drop of TiO2/water nanofluid. International Communications in Heat and Mass Transfer, 39(3), 456–462. https://doi.org/10.1016/j.icheatmasstransfer.2012.01.004
Kessler, V. G., & Seisenbaeva, G. A. (2023). Molecular mechanisms of the metal oxide sol-gel process and their application in approaches to thermodynamically challenging complex oxide materials. Journal of Sol-Gel Science and Technology, 107(1), 190–200. https://doi.org/10.1007/S10971-023-06120-Y
Khalatbari, S., Jalili, P., Jalili, B., & Ganji, D. D. (2025). Investigating the improvement of heat transfer and flow characteristics of hybrid nanofluids: A comprehensive review. Proceedings of The Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering. https://doi.org/10.1177/09544089251318785
Khanafer, K., & Vafai, K. (2011). A critical synthesis of thermophysical characteristics of nanofluids. International Journal of Heat and Mass Transfer, 54(19-20), 4410-4428. https://doi.org/10.1016/j.ijheatmasstransfer.2011.04.048
Kim, S. H., Choi, S. R., & Kim, D. (2006). Thermal conductivity of metal-oxide nanofluids: particle size dependence and effect of laser irradiation. ASME Journal of Heat and Mass Transfer, 129(3), 298–307. https://doi.org/10.1115/1.2427071
Lee, G.J.; Kim, C.K.; Lee, M.K.; Rhee, C.K. (2025). Characterization of ethylene glycol based TiO2. Paperzz. Com. https://Paperzz.Com/Doc/8057816/Characterization-Of-Ethylene-Glycol-Based-Tio2
Leena, M., & Srinivasan, S. (2015). Synthesis and ultrasonic investigations of titanium oxide nanofluids. Journal of Molecular Liquids, 206, 103–109. https://doi.org/10.1016/j.molliq.2015.02.001
Li, S., & Sun, W. (2011). A comparative study on aggregation/sedimentation of TiO2 nanoparticles in mono- and binary systems of fulvic acids and Fe(III). Journal of Hazardous Materials, 197, 70–79. https://doi.org/10.1016/j.jhazmat.2011.09.059
Liang, C. H., Shimizu, Y., Sasaki, T., & Koshizaki, N. (2005). Preparation of ultrafine TiO2 nanocrystals via pulsed-laser ablation of titanium metal in surfactant solution. Applied Physics A, 80(4), 819–822. https://doi.org/10.1007/S00339-003-2489-6
Liu, P., Cai, W., Wan, L., Shi, M., Luo, X., & Jing, W. (2010). Fabrication and characteristics of rutile TiO2 nanoparticles induced by laser ablation. Transactions of Nonferrous Metals Society of China, 19, S743–S747. https://doi.org/10.1016/S1003-6326(10)60143-4
Longo, G. A., Zilio, C. (2011). Experimental measurement of thermophysical properties of oxide–water nano-fluids down to ice-point. Experimental Thermal and Fluid Science, 35(7), 1313–1324. https://doi.org/10.1016/j.expthermflusci.2011.04.019
Lu, S.Y. (1998). Effective conductivities of aligned spheroid dispersions estimated by an equivalent inclusion model. Journal of Applied Physics, 84(5), 2647–2655. https://doi.org/10.1063/1.368377
Mansour, D. -E. A. Atiya, E. G. Khattab, R. M., & Azmy, A. M. (2012). Effect of titania nanoparticles on the dielectric properties of transformer oil-based nanofluids. In 2012 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (pp. 295-298). https://doi.org/10.1109/CEIDP.2012.6378779
Masuda, H., Ebata, A., Teramae, K., Hishinuma, N. (1993). Alteration of thermal conductivity and viscosity of liquid by dispersing ultra-fine particles. dispersion of Al2O3, SiO2 and TiO2 ultra-fine particles. Netsu Bussei, 7(4), 227–233. https://doi.org/10.2963/jjtp.7.227
Maxwell, J. C. (1873). A treatise on electricity and magnetism (1st ed.). The Clarendon Press. https://archive.org/details/electricandmagne01maxwrich/page/n7/mode/2up
Megatif, L., Ghozatloo, A., Arimi, A., & Shariati-Niasar, M. (2015). Investigation of laminar convective heat transfer of a novel TiO2–carbon nanotube hybrid water-based nanofluid. Experimental Heat Transfer, 29(1), 124–138. https://doi.org/10.1080/08916152.2014.973974
Mirahmad, A., Kumar, R. S., Breogán Pato Doldán, Rios, C. P., & Díez-Sierra, J. (2025). Beyond thermal conductivity: A review of nanofluids for enhanced energy storage and heat transfer. Nanomaterials, 15(4), 302–302. https://doi.org/10.3390/Nano15040302
Mo, S., Chen, Y., Jia, L., & Luo, X. (2011). Investigation on crystallization of TiO2–water nanofluids and deionized water. Applied Energy, 93, 65–70. https://doi.org/10.1016/j.apenergy.2011.07.014
Moldoveanu, G. M., Minea, A. A., Iacob, M., Ibanescu, C., & Danu, M. (2018). Experimental study on viscosity of stabilized Al2O3, TiO2 nanofluids and their hybrid. Thermochimica Acta, 659, 203–212. https://doi.org/10.1016/j.tca.2017.12.008
Murshed, S. M. S. (2012). Simultaneous measurement of thermal conductivity, thermal diffusivity, and specific heat of nanofluids. Heat Transfer Engineering, 33(8), 722–731. https://doi.org/10.1080/01457632.2011.635986
Murshed, S. M. S., Leong, K. C., & Yang, C. (2005). Enhanced thermal conductivity of TiO2 water based nanofluids. International Journal of Thermal Sciences, 44(4), 367–373. https://doi.org/10.1016/J.Ijthermalsci.2004.12.005
Muthusamy, Y., Kadirgama, K., Rahman, M. M., Ramasamy, D., & Sharma, K. V. (2016). Wear analysis when machining AISI 304 with ethylene glycol/ TiO2 nanoparticle-based coolant. The International Journal of Advanced Manufacturing Technology, 82(1-4), 327–340. https://doi.org/10.1007/S00170-015-7360-3
Nan, C. W., Birringer, R., Clarke, D., & Gleiter, H. (1997). Effective thermal conductivity of particulate composites with interfacial thermal resistance. Journal of Applied Physics, 81(10), 6692–6699. https://doi.org/10.1063/1.365209
Nayak, M. K., Shaw, S., Khan, M. I., Makinde, O. D., Chu, Y. M., & Khan, S. U. (2021). Interfacial layer and shape effects of modified Hamilton’s Crosser model in entropy optimized Darcy-Forchheimer flow. Alexandria Engineering Journal, 60(4), 4067–4083. https://doi.org/10.1016/j.aej.2021.02.010
Nian, J. N., & Teng, H. (2006). Hydrothermal synthesis of single-crystalline anatase TiO2 nanorods with nanotubes as the precursor. The Journal of Physical Chemistry B, 110(9), 4193–4198. https://doi.org/10.1021/Jp0567321
Padmanabhan, V. M. V., & Palanisamy, S. (2012). The use of TiO2 nanoparticles to reduce refrigerator Ir-reversibility. Energy Conversion and Management, 59, 122–132. https://doi.org/10.1016/j.enconman.2012.03.002
Pak, B. C., & Cho, Y. I. (1998). Hydrodynamic and heat transfer study of dispersed fluids with submicron metallic oxide particles. Experimental Heat Transfer, 11(2), 151–170. https://doi.org/10.1080/08916159808946559
Palabiyik, I., Musina, Z., Witharana, S., & Ding, Y. (2011). Dispersion stability and thermal conductivity of propylene glycol-based nanofluids. Journal of Nanoparticle Research, 13(10), 5049–5055. https://doi.org/10.1007/S11051-011-0485-X
Panduro, E. A. C., Finotti, F., Largiller, G., & Lervåg, K. Y. (2022). A review of the use of nanofluids as heat-transfer fluids in parabolic-trough collectors. Applied Thermal Engineering, Article 118346. https://doi.org/10.1016/J.Applthermaleng.2022.118346
Pathak, S. K., Kumar, R., Goel, V., Pandey, A. K., & Tyagi, V. V. (2022). Recent advancements in thermal performance of nano-fluids charged heat pipes used for thermal management applications: A comprehensive review. Applied Thermal Engineering, 216, Article 119023. https://doi.org/10.1016/j.applthermaleng.2022.119023
Patel, H. E., Sundararajan, T., & Das, S. K. (2009). An experimental investigation into the thermal conductivity enhancement in oxide and metallic nanofluids. Journal of Nanoparticle Research, 12, 1015-1031. https://doi.org/10.1007/s11051-009-9658-2
Pavasupree, S., Jitputti, J., Ngamsinlapasathian, S., & Yoshikawa, S. (2008). Hydrothermal synthesis, characterization, photocatalytic activity and dye-sensitized solar cell performance of mesoporous anatase TiO2 nanopowders. Materials Research Bulletin, 43(1), 149–157. https://doi.org/10.1016/j.materresbull.2007.02.028
Peng, H., Lin, L., & Ding, G. (2015). Influences of primary particle parameters and surfactant on aggregation behavior of nanoparticles in nano-refrigerant. Energy, 89, 410–420. https://doi.org/10.1016/j.energy.2015.05.116
Rea, U., McKrell, T., Hu, L. W., & Buongiorno, J. (2009). Laminar convective heat transfer and viscous pressure loss of alumina–water and zirconia–water nanofluids. International Journal of Heat and Mass Transfer, 52(7-8), 2042-2048. https://doi.org/10.1016/j.ijheatmasstransfer.2008.10.025
Sadrolhosseini, A.R., Mahdi, M.A., Alizadeh, F., & Rashid, S.A. (2018). Laser ablation technique for synthesis of metal nanoparticle in liquid. In Y. Ma (Ed.), Laser technology and its applications (pp. 63-83). IntechOpen. https://doi.org/10.5772/intechopen.80374
Saha, G., & Paul, M. C. (2014). Numerical analysis of the heat transfer behaviour of water based Al2O3 and TiO2 nanofluids in a circular pipe under the turbulent flow condition. International Communications in Heat and Mass Transfer, 56, 96–108. https://doi.org/10.1016/j.icheatmasstransfer.2014.06.008
Saleh, R., Putra, N., Wibowo, R. E., Septiadi, W. N., & Prakoso, S. P. (2014). Titanium dioxide nanofluids for heat transfer applications. Experimental Thermal and Fluid Science, 52, 19-29. https://doi.org/10.1016/j.expthermflusci.2013.08.018
Sandhya, D., Reddy, M. C.S., & Rao, V. V. (2016). Improving the cooling performance of automobile radiator with ethylene glycol water based TiO2 nanofluids. International Communications in Heat and Mass Transfer, 78, 121–126. https://doi.org/10.1016/j.icheatmasstransfer.2016.09.002
Sandhya, M., Ramasamy, D., Sudhakar, K., Kadirgama, K., & Harun, W. S. W. (2021). Hybrid nano-coolants in automotive heat transfer – An updated report. Maejo International Journal of Energy and Environmental Communication, 2(3), 43–57. https://doi.org/10.54279/mijeec.V2i3.245040
Sekhara, C., Rao, V. V., Mohan, C., Sarada, S. N., & Ramesh, L. (2012). Thermal conductivity measurements of ethylene glycol water based TiO2 nanofluids. Nanoscience and Nanotechnology Letters, 4(1), 105–109. https://doi.org/10.1166/nnl.2012.1272
Sen, S., Govindarajan, V., Pelliccione, C. J., Wang, J., Miller, D. J., & Timofeeva, E. V. (2015). Surface modification approach to TiO2 nanofluids with high particle concentration, low viscosity, and electrochemical activity. Acs Applied Materials & Interfaces, 7(37), 20538–20547. https://doi.org/10.1021/acsami.5b05864
Setia, H., Gupta, R., Wanchoo, R. K. (2011). Thermophysical properties of TiO2-water based nanofluids. AIP Conference Proceedings, 1393, 267–268. https://doi.org/10.1063/1.3653712
Shao, X., Mo, S., Pan, T., Chen, Y., Jia, L., Yang, Z., Yin, T., & Cheng, Z. (2017). Improved dispersion stability of water-based TiO2 nanofluids through combined effects of nanoparticle mixing and dispersant addition. Nanoscience And Nanotechnology Letters, 9(10), 1497–1504. https://doi.org/10.1166/nnl.2017.2507
Sharma, A., Karn, R., & Pandiyan, S. (2014). Synthesis of TiO2nanoparticles by sol-gel method and their characterization. Journal of Basic and Applied Engineering Research, 1(9), 1–5.
Sharma, P., Said, Z., Kumar, A., Nižetić, S., Pandey, A., Hoang, A. T., Huang, Z., Afzal, A., Li, C., Le, A. T., Nguyen, X. P., & Tran, V. D. (2022). Recent advances in machine learning research for nanofluid-based heat transfer in renewable energy system. Energy & Fuels, 36(13), 6626–6658. https://doi.org/10.1021/acs.energyfuels.2c01006
Shu, R., Gan, Y., Lv, H., & Tan, D. (2016). Preparation and rheological behavior of ethylene glycol-based TiO2 nanofluids. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 509, 86–90. https://doi.org/10.1016/j.colsurfa.2016.08.091
Sithebe, T., Vereedhi, V. R., & Khoza, M. M. (2023). An investigation into the thermal performance of a TiO2 + Cuo nanofluid in a quad radiator. Materials Today: Proceedings, 92, 1299–1303. https://doi.org/10.1016/J.Matpr.2023.05.488
Sol–gel process. (2025, August 5). In Wikipedia. https://en.wikipedia.org/wiki/Sol%E2%80%93gel_process
Sonawane, S. S., Khedkar, R. S., & Wasewar, K. L. (2013). Effect of sonication time on enhancement of effective thermal conductivity of nano TiO2–water, ethylene glycol, and paraffin oil nanofluids and models comparisons. Journal of Experimental Nanoscience, 10(4), 310–322. https://doi.org/10.1080/17458080.2013.832421
Sundar, S., Venkatachalam, G., & Kwon, S. J. (2018). Sol-gel mediated greener synthesis of γ-Fe2O3 nanostructures for the selective and sensitive determination of uric acid and dopamine. Catalysts, 8(11), 512. https://doi.org/10.3390/catal8110512
Surakasi, R., Sripathi, S., Nadimpalli, S. P., Afzal, S., Singh, B., Tripathi, M., & Hafa, R. A. (2022). Synthesis and characterization of TiO2-water nanofluids. Adsorption Science & Technology, 2022, 1–9. https://doi.org/10.1155/2022/3286624
Suzuki, Y., & Yoshikawa, S. (2004). Synthesis and thermal analyses of TiO2-derived nanotubes prepared by the hydrothermal method. Journal of Materials Research, 19(4), 982–985. https://doi.org/10.1557/jmr.2004.0128
Tajik, B., Abbassi, A., Saffar-Avval, M., & Najafabadi, M. A. (2011). Ultrasonic properties of suspensions of TiO2 and Al2O3 nanoparticles in water. Powder Technology, 217, 171–176. https://doi.org/10.1016/j.powtec.2011.10.024
Tavman, I., Turgut, A., Chirtoc, M., Hadjov, K., Fudym, O., & Tavman, S. (2010). Experimental study on thermal conductivity and viscosity of water-based nanofluids. Heat Transfer Research, 41(3), 339-351. https://doi.org/10.1615/heattransres.v41.i3.100
Tazarv, S., Saffar-Avval, M., Khalvati, F., Mirzaee, E., & Mansoori, Z. (2015). Experimental investigation of saturated flow boiling heat transfer to TiO2/R141b nanorefrigerant. Experimental Heat Transfer, 29(2), 188–204. https://doi.org/10.1080/08916152.2014.973976
Teng, T. P., Hung, Y. H., Teng, T. C. & Chen, J. H. (2011). Performance evaluation on an air-cooled heat exchanger for alumina nanofluid under laminar flow. Nanoscale Research Letters, 6(1), Article 488. https://doi.org/10.1186/1556-276X-6-488
Timofeevaa, E. V., Moravekb, M. R., Singh, D. (2011). Improving the heat transfer efficiency of synthetic oil with silica nanoparticles. Journal of Colloid Interface Science, 364(1), 71–79. https://doi.org/10.1016/j.jcis.2011.08.004
Trisaksri, V., & Wongwises, S. (2009). Nucleate pool boiling heat transfer of TiO2 –R141b nanofluids. International Journal of Heat and Mass Transfer, 52(5-6), 1582–1588. https://doi.org/10.1016/j.ijheatmasstransfer.2008.07.041
Tseng, W. J., & Lin, K.-C. (2003). Rheology and colloidal structure of aqueous TiO2 nanoparticle suspensions. Materials Science and Engineering: A, 355(1-2), 186–192. https://doi.org/10.1016/S0921-5093(03)00063-7
Turgut, A., Tavman, I., Chirtoc, M., Schuchmann, H. P., Sauter, C., & Tavman, S. (2009). Thermal conductivity and viscosity measurements of water-based TiO2 nanofluids. International Journal of Thermophysics, 30(4), 1213–1226. https://doi.org/10.1007/S10765-009-0594-2
Vafaei, S., Yeager, J. A., Daluga, P., & Scherer, B. (2021). Forced convection nanofluid heat transfer as a function of distance in microchannels. Materials, 14(11), Article 3021. https://doi.org/10.3390/ma14113021
Vakili, M., Mohebbi, A., & Hashemipour, H. (2013). Experimental study on convective heat transfer of TiO2 nanofluids. Heat and Mass Transfer, 49(8), 1159–1165. https://doi.org/10.1007/S00231-013-1158-3
Viana, M. M., Soares, V. F., & Mohallem, N. D. S. (2010). Synthesis and characterization of TiO2 nanoparticles. Ceramics International, 36(7), 2047–2053. https://doi.org/10.1016/j.ceramint.2010.04.006
Vijayalakshmi, R., & Rajendran, V. (2012). Synthesis and characterization of nano-TiO2 via different methods. Scholars Research Library, 4(2), 1183–1190.
Wang, H., Hu, S., Takahashi, K., Zhang, X., Takamatsu, H., & Chen, J. (2017). Experimental study of thermal rectification in suspended monolayer graphene. Nature Communications, 8(1), Article 15843. https://doi.org/10.1038/ncomms15843
Wang, J., Li, G., Li, T., Zeng, M., & Sundén, B. (2020). Effect of various surfactants on stability and thermophysical properties of nanofluids. Journal of Thermal Analysis and Calorimetry, 143(6), 4057–4070. https://doi.org/10.1007/S10973-020-09381-9
Wang, W., Lin, L., Zhou, X., Wang, S. (2012). A comprehensive model for the enhanced thermal conductivity of nanofluids. Journal of Advances Research in Physics, 3(2), Article 021209.
Wasp, E. J., Kenny, J. P., & Gandhi, R. L. (1977). Solid-liquid flow: Slurry pipeline transportation (1st ed.). Trans Techn Publications.
Wei, B., Zou, C., & Li, X. (2017). Experimental investigation on stability and thermal conductivity of diathermic oil based TiO2 nanofluids. International Journal of Heat and Mass Transfer, 104, 537–543. https://doi.org/10.1016/j.ijheatmasstransfer.2016.08.078
Wen, D., & Ding, Y. (2005). Formulation of nanofluids for natural convective heat transfer applications. International Journal of Heat and Fluid Flow, 26(6), 855–864. https://doi.org/10.1016/j.ijheatfluidflow.2005.10.005
Wu, Y., & Kao, M. (2011). Using TiO2 nanofluid additive for engine lubrication oil. Industrial Lubrication and Tribology, 63(6), 440–445. https://doi.org/10.1108/00368791111169025
Xie, H., Fujii, M., Zhang, X. (2005). Effect of interfacial nanolayer on the effective thermal conductivity of nanoparticle-fluid mixture. International Journal of Heat and Mass Transfer, 48, 2926–2932. https://doi.org/10.1016/j.ijheatmasstransfer.2004.10.040
Xuan, Y., Li, Q., Zhang, X., & Fujii, M. (2006). Stochastic thermal transport of nanoparticle suspensions. Journal of Applied Physics, 100(4), Article 043507. https://doi.org/10.1063/1.2245203
Yang, J., Yang, X., Wang, J., Chin, H. H., & Sundén, B. (2022). Review on thermal performance of nanofluids with and without magnetic fields in heat exchange devices. Frontiers In Energy Research, 10, Article 822776. https://doi.org/10.3389/fenrg.2022.822776
Yang, L., & Du, K. (2017). A comprehensive review on heat transfer characteristics of TiO2 Nanofluids. International Journal of Heat and Mass Transfer, 108, 11–31. https://doi.org/10.1016/j.ijheatmasstransfer.2016.11.086
Yang, L., Du, K., Bao, S., & Wu, Y. (2012). Investigations of the selection of nanofluid applied to the ammonia absorption refrigeration system. International Journal of Refrigeration, 35(8), 2248–2260. https://doi.org/10.1016/j.ijrefrig.2012.08.003
Yang, L., Du, K., Niu, X., Li, Y., & Zhang, Y. (2011). An experimental and theoretical study of the influence of surfactant on the preparation and stability of ammonia-water nanofluids. International Journal of Refrigeration, 34(8), 1741–1748. https://doi.org/10.1016/j.ijrefrig.2011.06.007
Yiamsawas, T., Dalkilic, A. S., Mahian, O., & Wongwises, S. (2013). Measurement and correlation of the viscosity of water-based Al2O3 and TiO2 nanofluids in high temperatures and comparisons with literature reports. Journal of Dispersion Science and Technology, 34(12), 1697–1703. https://doi.org/10.1080/01932691.2013.764483
Yin, H., Wada, Y., Kitamura, T., Kambe, S., Murasawa, S., Mori, H., Sakata, T., & Yanagida, S. (2001). Hydrothermal synthesis of nanosized anatase and rutile TiO2 using amorphous phase TiO2. Journal of Materials Chemistry, 11(6), 1694–1703. https://doi.org/10.1039/B008974P
Yoo, D.-H., Hong, K. S., & Yang, H.-S. (2007). Study of thermal conductivity of nanofluids for the application of heat transfer fluids. Thermochimica Acta, 455(1-2), 66–69. https://doi.org/10.1016/j.tca.2006.12.006
Yu, W., & Choi, S. U. S. (2003). The role of interfacial layers in the enhanced thermal conductivity of nanofluids: A renovated Maxwell model. Journal of Nanoparicle Research, 5, 167–171. https://doi.org/10.1023/A:1024438603801
Zaraki, A., Ghalambaz, M., Chamkha, A. J., Ghalambaz, M., & De Rossi, D. (2015). Theoretical analysis of natural convection boundary layer heat and mass transfer of nanofluids: effects of size, shape and type of nanoparticles, type of base fluid and working temperature. Advanced Powder Technology, 26(3), 935–946. https://doi.org/10.1016/j.apt.2015.03.012
Zhang, J., Chaker, M., & Ma, D. (2017). Pulsed laser ablation based synthesis of colloidal metal nanoparticles for catalytic applications. Journal of Colloid and Interface Science, 489, 138–149. https://doi.org/10.1016/j.jcis.2016.07.050
Zhang, Y. X., Li, G. H., Jin, Y. X., Zhang, Y., Zhang, J., & Zhang, L. D. (2002). Hydrothermal synthesis and photoluminescence of TiO2 nanowires. Chemical Physics Letters, 365(3-4), 300–304. https://doi.org/10.1016/S0009-2614(02)01499-9