Study of synthesis, stability and thermo-physical properties of graphene nanoplatelet/platinum hybrid nanofluid

Yarmand, H. and Gharehkhani, S. and Shirazi, S.F.S. and Goodarzi, M. and Amiri, A. and Sarsam, W.S. and Alehashem, M.S. and Dahari, M. and Kazi, S.N. (2016) Study of synthesis, stability and thermo-physical properties of graphene nanoplatelet/platinum hybrid nanofluid. International Communications in Heat and Mass Transfer, 77. pp. 15-21. ISSN 0735-1933

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Official URL: http://dx.doi.org/10.1016/j.icheatmasstransfer.201...

Abstract

In the present study a new synthesis method has been introduced for the decoration of platinum (Pt) on the functionalized graphene nanoplatelet (GNP) and also highlighted the preparation method of nanofluids. GNP–Pt uniform nanocomposite was produced from a simple chemical reaction procedure, which included acid treatment for functionalization of GNP. The surface characterization was performed by various techniques such as XRD, FESEM and TEM. The effective thermal conductivity, density, viscosity, specific heat capacity and stability of functionalized GNP–Pt water based nanofluids were investigated in different instruments. The GNP–Pt hybrid nanofluids were prepared by dispersing the nanocomposite in base fluid without adding any surfactant. The examined nanofluids were stable and no significant sedimentation was observed for a long time (22 days). Thermal conductivity of GNP–Pt nanocomposite dispersed in distilled water nanofluids shows an enhancement of 17.77% at 40 °C and 0.1% weight concentration.

Item Type: Article
Uncontrolled Keywords: Graphene nanoplatelet (GNP); GNP–Pt nanocomposite; Hybrid nanofluid; Thermo-physical property
Subjects: Q Science > QD Chemistry
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 31 May 2018 05:43
Last Modified: 31 May 2018 05:43
URI: http://eprints.um.edu.my/id/eprint/18797

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