Synthesis of ZnO Nanocrystal–Graphene Composite by Mechanical Milling and Sonication-Assisted Exfoliation

Arora, Sweety and Srivastava, Chandan (2017) Synthesis of ZnO Nanocrystal–Graphene Composite by Mechanical Milling and Sonication-Assisted Exfoliation. In: JOM, 69 (6). pp. 1021-1026. ISSN 1047-4838

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Abstract

A ZnO nanocrystal–graphene composite was synthesized by a two-step method involving mechanical milling and sonication-assisted exfoliation. Zn metal powder was first ball-milled with graphite powder for 30 h in water medium. This ball-milled mixture was then subjected to exfoliation by sonication in the presence of sodium lauryl sulfate surfactant to produce graphene decorated with spherical agglomerates of ultrafine nanocrystalline ZnO. The presence of a few layers of graphene was confirmed by Raman spectroscopy and atomic force microscopy measurements. The size, phase identity and composition of the ZnO nanocrystals was determined by transmission electron microscopy measurements.

Item Type:	Journal Article
Publication:	JOM
Publisher:	Minerals, Metals and Materials Society
Additional Information:	The copyright of this article belongs to the Minerals, Metals and Materials Society.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	26 May 2022 06:38
Last Modified:	26 May 2022 06:38
URI:	https://eprints.iisc.ac.in/id/eprint/72702

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