Issue 16, 2013
From the journal:

RSC Advances

Preparation of Au nanodendrites supported on carbon fiber cloth and its catalytic performance to H2O2 electroreduction and electrooxidation

Fan Yang,a   Kui Cheng,a   Tianhao Wu,b   Ying Zhang,a   Jinling Yin,a   Guiling Wanga  and  Dianxue Cao*a  

* Corresponding authors

a Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, P. R. China
E-mail: caodianxue@hrbeu.edu.cn
Fax: 86-451-82589036

b ChenGeng Class, Harbin Engineering University, Harbin, P. R. China

Abstract

Well-defined Au dendrites supported on carbon fiber cloth are successfully prepared by potential pulse electrodeposition without additives or surfactants. The electrode (D-Au/CFC) is characterized by transmission electron microscopy, scanning electron microscopy and X-ray diffractometry. H2O2 electroreduction in H2SO4 and electrooxidation in KOH solution on the dendritic Au electrode are studied by linear sweep voltammetry and chronoamperometry. The D-Au/CFC electrode exhibits much higher catalytic activity and remarkably improved utilization of Au than Au nanoparticles prepared by the same method for both H2O2 electroreduction and electrooxidation owing to its unique open dendritic structure. The H2O2 electroreduction in H2SO4 solution exhibits much larger overpotentials than the H2O2 electrooxidation in KOH solution on the D-Au/CFC electrode. A high DPPFC performance using it both as the anode and cathode exhibits an open circuit voltage as high as ∼0.8 V and the peak power density can reach 14 mW cm−2 at 20 °C.

Graphical abstract: Preparation of Au nanodendrites supported on carbon fiber cloth and its catalytic performance to H2O2 electroreduction and electrooxidation

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Article information

DOI
https://doi.org/10.1039/C3RA23415K
Article type
Paper
Submitted
23 Oct 2012
Accepted
30 Jan 2013
First published
31 Jan 2013

RSC Adv., 2013,3, 5483-5490

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Preparation of Au nanodendrites supported on carbon fiber cloth and its catalytic performance to H2O2 electroreduction and electrooxidation

F. Yang, K. Cheng, T. Wu, Y. Zhang, J. Yin, G. Wang and D. Cao, RSC Adv., 2013, 3, 5483 DOI: 10.1039/C3RA23415K

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