Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation

doi:10.1088/1674-1056/24/11/118104

Abstract We report a solvothermal method preparation of dendritic Pd nanoparticles (DPNs) and spherical Pd nanoparticles (SPNs) supported on reduced graphene oxide (RGO). Drastically different morphologies of Pd NPs with nanodendritic structures or spherical structures were observed on graphene by controlling the reduction degree of graphene oxide (GO) under mild conditions. In addition to being a commonplace substrate, GO plays a more important role that relies on its surface groups, which serves as a shape-directing agent to direct the dendritic growth. As a result, the obtained DPNs/RGO catalyst exhibits a significantly enhanced electro-catalytic behavior for the oxidation of formic acid compared to the SPNs/RGO catalyst.

Keywords: graphene nanosheet Pd nanostructure nanodendrite electrocatalyst

Received: 15 May 2015
Revised: 16 June 2015
Accepted manuscript online:

PACS:	81.07.Wx	(Nanopowders)
	82.47.Gh	(Proton exchange membrane (PEM) fuel cells)
	81.05.ue	(Graphene)
	81.16.Be	(Chemical synthesis methods)

Corresponding Authors: Yang Su-Dong
E-mail: yangsd@ms.xjb.ac.cn

Cite this article:

Yang Su-Dong (杨苏东), Chen Lin (陈琳) Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation 2015 Chin. Phys. B 24 118104

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Direct synthesis of graphene nanosheets support Pd nanodendrites for electrocatalytic formic acid oxidation

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