Synthesis of highly stable γ-Fe2O3 ferrofluid dispersed in liquid paraffin, motor oil and sunflower oil for heat transfer applications

被引：32

作者：

Imran, Mohd ^{[1
]}

Shaik, Aabid Hussain ^{[2
]}

Ansari, Akhalakur Rahman ^{[3
]}

Aziz, Abdul ^{[4
]}

Hussain, Shahir ^{[5
]}

Abouatiaa, Ahmed Farag Fadil ^{[1
]}

Khan, Afzal ^{[6
]}

Chandan, Mohammed Rehaan ^{[2
]}

机构：

[1] Jazan Univ, Dept Chem Engn, Fac Engn, POB 706, Jazan 45142, Saudi Arabia

[2] Vellore Inst Technol, Dept Chem Engn, Sch Civil & Chem Engn, Vellore 632014, Tamil Nadu, India

[3] King Abdulaziz Univ, Ctr Nanotechnol, Jeddah 21589, Saudi Arabia

[4] Jazan Univ, Dept Mech Engn, Fac Engn, POB 706, Jazan 45142, Saudi Arabia

[5] Jazan Univ, Dept Elect Engn, Fac Engn, POB 706, Jazan 45142, Saudi Arabia

[6] Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

RSC ADVANCES | 2018年 / 8卷 / 25期

关键词：

THERMAL-CONDUCTIVITY; NANOPARTICLES; NANOFLUIDS; SOLVENT;

D O I：

10.1039/c7ra13467c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This article aims at the synthesis of highly stable -Fe2O3 magnetic nanoparticles and their ferrofluids using different base liquids such as liquid paraffin, motor oil and sunflower oil for heat transfer applications. Phase and morphology of the synthesized nanoparticles were probed using XRD, SEM and FTIR spectroscopy. The average nanoparticle size of -Fe2O3 magnetic nanoparticles was found to be 13 nm. Stability of the ferrofluids was monitored by visually observing the aggregation nature of the nanoparticles for 180 days. The ferrofluid prepared using motor oil as a base fluid exhibited high stability (for more than 1 year) and a mean enhancement of 77% in thermal conductivity at 1.5 vol% nanoparticles was observed as compared to base fluid. The viscosity of the ferrofluids was also measured and found to be 18, 38 and 8 cP at 27 degrees C for the liquid paraffin based, motor oil based and sunflower oil based ferrofluid, respectively.

引用

页码：13970 / 13975

页数：6

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