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Citation: YU Mingzhu, LI linru, LU Tianhong, CHEN Zhaoyang, MA Chunan, DU Jiangyan. Electrocatalytic Performance of Ir Catalyst Supported on Mixture of WC and Vulcan XC-72 Carbon for Ammonia Oxidation[J]. Chinese Journal of Applied Chemistry, ;2013, 30(4): 448-452. doi: 10.3724/SP.J.1095.2013.20249 shu

Electrocatalytic Performance of Ir Catalyst Supported on Mixture of WC and Vulcan XC-72 Carbon for Ammonia Oxidation

a. School of Chemistry and Material Science, Nanjing Normal University, Nanjing 210097, China;
b. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, China

Received Date: 6 June 2012
Revised Date: 23 July 2012

In this paper,the Ir catalysts supported on Vulcan XC-72 carbon(XC)(Ir/XC) and on the mixture of WC and Vulcan XC-72C(Ir-WC/XC) were prepared.Based on the characterizations with energy dispersive spectroscopy and X-ray diffraction patterns,the electrocatalytic performances of the two Ir catalysts on different supports for ammonia oxidation were investigated using the electrochemical techniques.It showed that the current density of the ammonia oxidation peak at the Ir-WC/XC catalyst electrode is 31.26% larger than that at the Ir/XC catalyst electrode.Furthermore,the electrocatalytic stability of the Ir-WC/XC catalyst is obviously better than that at the Ir/XC catalyst.
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