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Citation: QI Zengxin, DENG Chao, WU Bing, GAO Ying. Preparation of C@WC Supporter with a Core-shell Structure and Pd/C@WC Catalyst for Formic Acid Electrooxidation[J]. Chinese Journal of Applied Chemistry, ;2014, 31(10): 1229-1233. doi: 10.3724/SP.J.1095.2014.30631 shu

Preparation of C@WC Supporter with a Core-shell Structure and Pd/C@WC Catalyst for Formic Acid Electrooxidation

1.
College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China

Corresponding author: GAO Ying,
Received Date: 11 December 2013
Available Online: 3 January 2014
Fund Project: 黑龙江省自然科学基金资助项目(B201002) (B201002)哈尔滨市科技创新人才专项资金项目(2010RFXXG018) (2010RFXXG018)黑龙江省高校科技创新团队建设计划(2011TD010) (2011TD010)

The support of C@WC core-shell structure is prepared with activated carbon as carbon source, in situ generation tungsten carbide coating on the surface of carbon material. TEM results confirm that the prepared of C@WC is core-shell structure. The composition of the shell is mainly WC containing a small amount of W. BET specific surface measurement results show that the specific surface area of C@WC is smaller than that of XC-72R, but with more of the mesoporous structure. The electrochemical surface area of Pd/C@WC is 65.47 m²/g. The Pd/C@WC catalyst electrode is more active for formic acid oxidation than Pd/C. The peak current density on Pd/C@WC is 0.222 A/cm² which is about 0.128 A/cm² higher than that on Pd/C. The multiple cyclic voltammograms results show that Pd/C@WC catalyst electrode has higher activity and stability compared with Pd/C for formic acid electrooxidation.
- palladium,
- tungsten carbide,
- formic acid oxidation,
- support
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