Preparation and thermal conductivity investigation of reduced graphene oxide-ZnO nanocomposite-based nanofluid synthesised by ultrasound-assisted method

被引：40

作者：

Mandhare H. ^{[1
]}

P. Barai D. ^{[1
]}

A. Bhanvase B. ^{[1
]}

Saharan V.K. ^{[2
]}

机构：

[1] Chemical Engineering Department, Laxminarayan Institute of Technology, RTM Nagpur University, Nagpur

[2] Department of Chemical Engineering, Malaviya National Institute of Technology, Jaipur

来源：

Materials Research Innovations | 2020年 / 24卷 / 07期

关键词：

nanofluid; rGO-ZnO nanocomposite; thermal conductivity; ultrasound assisted synthesis;

D O I：

10.1080/14328917.2020.1721809

中图分类号：

学科分类号：

摘要：

Preparation of water-based nanofluid containing reduced graphene oxide-zinc oxide (rGO-ZnO) nanocomposite particles synthesised by ultrasonic-assisted method has been carried out in this work. Energy-dispersive X-ray spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray pPhotoelectron sSpectroscopyand Raman spectroscopy were used to confirm the successful formation of the nanocomposite. The reduction of GO and attachment of the ZnO nanoparticles to it was evident from all the characterisation techniques. For 0.1 vol.% of rGO-ZnO nanocomposite-based nanofluid, the thermal conductivity was found to be 2.95 W/mK at 50°C. It further increased with increase in temperature and concentration of the nanofluid, for which a new correlation has been proposed, which can satisfactorily predict the behaviour. Also, comparison of thermal conductivity of rGO-ZnO nanocomposite-based nanofluid with nanofluids containing rGO, ZnO nanoparticles and other rGO-based nanocomposite particles has been done. This study suggests a possible application of the rGO-ZnO nanocomposite-based nanofluid for various heat transfer applications. © 2020 Informa UK Limited, trading as Taylor & Francis Group.

引用

页码：433 / 441

页数：8

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