Highly dispersed Pd nanoparticles on chemically modified graphene with aminophenyl groups for formic acid oxidation

doi:10.1088/1674-1056/20/11/113301

Abstract A novel electrode material based on chemically modified graphene (CMG) with aminophenyl groups is covalently functionalized by a nucleophilic ring-opening reaction between the epoxy groups of graphene oxide and the aminophenyl groups of p-phenylenediamine. Palladium nanoparticles with an average diameter of 4.2 nm are deposited on the CMG by a liquid-phase borohydride reduction. The electrocatalytic activity and stability of the Pd/CMG composite towards formic acid oxidation are found to be higher than those of reduced graphene oxide and commercial carbon materials such as Vulcan XC-72 supported Pd electrocatalysts.

Keywords: chemically modified graphene fuel cell electrocatalysis Pd nanoparticles

Received: 20 July 2011
Revised: 18 August 2011
Accepted manuscript online:

PACS:	33.20.Ea	(Infrared spectra)
	68.37.Lp	(Transmission electron microscopy (TEM))
	81.10.Dn	(Growth from solutions)
	82.45.Jn	(Surface structure, reactivity and catalysis)

Fund: Project supported by the National Basic Research Program of China (Grant No. 2007CB209700), the Graduate Student Innovation Foundation of Jiangsu Province, China (Grant No. CX09B 075Z), and the Research Funding of Nanjing University of Aeronautics and Astronautics, China (Grant No. NS2010165).

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Yang Su-Dong(杨苏东), Shen Cheng-Min(申承民), Tong Hao(佟浩), He Wei(何卫), Zhang Xiao-Gang(张校刚), and Gao Hong-Jun(高鸿钧) Highly dispersed Pd nanoparticles on chemically modified graphene with aminophenyl groups for formic acid oxidation 2011 Chin. Phys. B 20 113301

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Highly dispersed Pd nanoparticles on chemically modified graphene with aminophenyl groups for formic acid oxidation

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