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Materials, Vol. 11, Pages 950: Experimental Study on Characteristics of Grinded Graphene Nanofluids with Surfactants

Materials, Vol. 11, Pages 950: Experimental Study on Characteristics of Grinded Graphene Nanofluids with Surfactants

Materials doi: 10.3390/ma11060950

Authors: HeonJin Seong GwiNam Kim JongHoon Jeon HyoMin Jeong JungPil Noh YoungJu Kim HyunJi Kim SunChul Huh

In earlier studies, much research has focused on increasing the efficiency of heat exchanger fields. Therefore, in this study, graphene nanofluid was fabricated for use as a heat transfer medium for a heat exchanger. Graphene has excellent electrical conductivity, mechanical properties, and heat transfer properties. It is expected that the heat transfer efficiency will be improved by fabricating the nanofluid. However, graphene is prone to sedimentation, because of its cohesion due to van der Waals binding force. In this experiment, a nanofluid was fabricated with enhanced dispersibility by surfactant and the ball-milling process. The zeta potential, absorbance, and thermal conductivity of the nanofluid were measured. As a result, when using the ratio of 2:1 (graphene:sodium dodecyl sulfate (SDS)), a higher thermal conductivity was obtained than in other conditions.

Authors:   Seong, HeonJin ; Kim, GwiNam ; Jeon, JongHoon ; Jeong, HyoMin ; Noh, JungPil ; Kim, YoungJu ; Kim, HyunJi ; Huh, SunChul
Journal:   Materials
Volume:   11
edition:   6
Year:   2018
Pages:   950
DOI:   10.3390/ma11060950
Publication date:   04-Jun-2018
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