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磷钼酸(PMA)修饰炭载Pd催化剂对甲酸氧化的电催化性能
引用本文:洪玉洁,杨改秀,唐亚文,陆天虹. 磷钼酸(PMA)修饰炭载Pd催化剂对甲酸氧化的电催化性能[J]. 中国科学:化学, 2011, 0(12): 1811-1816
作者姓名:洪玉洁  杨改秀  唐亚文  陆天虹
作者单位:[1]江苏省新型动力电池重点实验室,南京师范大学化学与材料科学学院,南京210097 [2]中国科学院可再生能源与天然气水合物重点实验室,中国科学院广州能源研究所,广州510640
基金项目:国家自然科学基金(20873065和21073094); 江苏高校优势学科建设工程项目的资助致谢本工作得到国家自然科学基金(20873065和21073094)和江苏高校优势学科建设工程项目的资助,特此致谢.
摘    要:
为了提高直接甲酸燃料电池(DFAFC)中炭载Pd(Pd/C)催化剂对甲酸氧化的电催化性能,用回流法制备了磷钼酸(PMA)修饰的炭载Pd(PMA-Pd/C)催化剂.并用谱学技术和电化学技术表征了催化剂的组分和结构,发现PMA通过化学作用而牢固地固定在Pd表面.由于PMA-Pd/C催化剂能抑制甲酸的自分解,因此,PMA-Pd/C催化剂对甲酸氧化的电催化性能优于Pd/C催化剂.

关 键 词:磷钼酸  甲酸  直接甲酸燃料电池  炭载Pd催化剂

Electrocatalytic performance of phosphomolybdic acid modified and carbon supported Pd catalyst for oxidation of formic acid
HONG YuJie,YANG GaiXiu,TANG YaWen,LU TianHong. Electrocatalytic performance of phosphomolybdic acid modified and carbon supported Pd catalyst for oxidation of formic acid[J]. Scientia Sinica Chimica, 2011, 0(12): 1811-1816
Authors:HONG YuJie  YANG GaiXiu  TANG YaWen  LU TianHong
Affiliation:1 Jiangsu Key Laboratory of New Power Batteries,School of Chemistry and Material Science,Nanjing Normal University,Nanjing 210097,China 2 CAS Key Laboratory of Renewable Energy and Gas Hydrate,Guangzhou Institute of Energy Conversion,Guangzhou 510640,China )
Abstract:
In order to increase the electrocatalytic performance of the Pd/C catalyst for the oxidation of formic acid in DFAFC,the PMA-Pd/C catalyst was prepared with the reflux method.The composition and structure of the PMA-Pd/C catalyst was characterized with spectroscopic and electrochemical techniques.It was found that PMA is tightly fixed on Pd surface through the chemical interaction.Because the PMA-Pd/C catalyst can inhibit the decomposition of formic acid,The electrocatalytic performance of the PMA-Pd/C catalyst for the oxidation of formic acid is better than that of the Pd/C catalyst.
Keywords:phosphomolybdic acid  formic acid  direct formic acid fuel cell  carbon supported Pd catalyst
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