JOURNAL ARTICLE

Effect of Sodium Metavanadate on Electrocatalytic Performance of Carbon Supported Pd Catalyst for Formic Acid Oxidation

Qi GuoHuanzhi LIYun JiTianhong Lu

Year: 2013 Journal:   Chinese Journal of Applied Chemistry Vol: 30 (02)Pages: 191-191   Publisher: Science China Press

Abstract

摘要: 直接甲酸燃料电池的两大问题是Pd催化剂对甲酸氧化的电催化稳定性不好和Pd能催化甲酸分解。 研究发现,当Pd/C在偏钒酸钠溶液中浸泡后能吸附上VO-3,吸附上VO-3的Pd/C催化剂对甲酸分解的催化性能会大大降低,由甲酸分解产生的CO的量也大大降低,使Pd/C催化剂被CO毒化的几率也大大降低,因此,在偏钒酸钠溶液中浸泡后的Pd/C催化剂对甲酸氧化的峰电流密度要比没有浸泡的Pd/C催化剂高13%左右。 计时电流曲线的测量表明,6000 s时在偏钒酸钠溶液中浸泡后的Pd/C催化剂对甲酸氧化的峰电流密度要比没有浸泡的Pd/C催化剂高42%左右。 结果证明,在偏钒酸钠溶液中浸泡能提高Pd/C催化剂对甲酸氧化的电催化活性,特别是电催化稳定性。

Keywords:
Formic acid Catalysis Chemistry Inorganic chemistry Palladium Decomposition Adsorption Organic chemistry

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Topics

Electrocatalysts for Energy Conversion
Physical Sciences →  Energy →  Renewable Energy, Sustainability and the Environment
Oxidative Organic Chemistry Reactions
Physical Sciences →  Chemistry →  Organic Chemistry
Fuel Cells and Related Materials
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
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