Enhanced electrochemical performance of graphene nanosheet thin film anode decorated with tin nanoparticles

Thomas, Rajesh and Rao, Yellareswara K and Rao, Mohan G (2014) Enhanced electrochemical performance of graphene nanosheet thin film anode decorated with tin nanoparticles. In: MATERIALS EXPRESS, 4 (1). pp. 65-71.

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Abstract

Graphene nanosheet (GNS) was synthesized by using microwave plasma enhanced CVD on copper substrate and followed by evaporation of tin metal. Scanning and transmission electron microscopy show that nanosize Sn particles are well embedded into the GNS matrix. The composition, structure, and electrochemical properties were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), cyclic voltammetry (CV) and chrono-potentiometry. The first discharge capacity of as-deposited and annealed SnGNS obtained was 1551 mA h/g and 975 mA h/g, respectively. The anodes show excellent cyclic performance and coulombic efficiency.

Item Type:	Journal Article
Publication:	MATERIALS EXPRESS
Publisher:	AMER SCIENTIFIC PUBLISHERS
Additional Information:	Copyright for this article belongs to the AMER SCIENTIFIC PUBLISHERS,USA
Keywords:	Graphene Nanosheet; Li Ion Batteries; Electrochemistry
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	11 Feb 2014 10:12
Last Modified:	11 Feb 2014 10:12
URI:	http://eprints.iisc.ac.in/id/eprint/48358

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