引用本文:
王秀艳, 赵雪萍, 马树华. 浸渍法制备硅钨酸修饰的炭载钯催化剂电催化甲酸氧化[J]. 应用化学,
2013, 30(12): 1470-1475.
doi:
10.3724/SP.J.1095.2013.30158
Citation: WANG Xiuyan, ZHAO Xueping, MA Shuhua. Preparation of Silicotungstic Acid Modified Carbon Supported Pd Catalyst by Impregnation Method and Its Electrocatalytic Performance for Formic Acid Oxidation[J]. Chinese Journal of Applied Chemistry, 2013, 30(12): 1470-1475. doi: 10.3724/SP.J.1095.2013.30158
Citation: WANG Xiuyan, ZHAO Xueping, MA Shuhua. Preparation of Silicotungstic Acid Modified Carbon Supported Pd Catalyst by Impregnation Method and Its Electrocatalytic Performance for Formic Acid Oxidation[J]. Chinese Journal of Applied Chemistry, 2013, 30(12): 1470-1475. doi: 10.3724/SP.J.1095.2013.30158
浸渍法制备硅钨酸修饰的炭载钯催化剂电催化甲酸氧化
English
Preparation of Silicotungstic Acid Modified Carbon Supported Pd Catalyst by Impregnation Method and Its Electrocatalytic Performance for Formic Acid Oxidation
Abstract:
The silicotungstic acid (SiWA) modified carbon supported Pd (Pd/C-SiWA) catalyst was prepared with immersing method. The chronoamperometric experiment shows that the current density are 0.013 A/mg and 0.082 A/mg at 3000 s for the Pd/C and Pd/C-SiWA catalysts,which are the 2.5% and 14.1% of that at 10 s,respectively. The result suggests that the electrocatalytic activity and stability of the Pd/C-SiWA catalyst for formic acid oxidation are much better than that of the Pd/C catalyst. This is attributed to that the Pd/C-SiWA catalyst inhibits the decomposition of formic acid leading to the decrease in the poisoning effect of CO. Thus,the electrocatalytic stability of the Pd/C catalyst for formic acid oxidation is improved.
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