Preparation of Pd/c Catalysts for Electrochemical Oxidation of Formic Acid
Carbon supported palladium catalysts for formic acid electro-oxidation were prepared from palladium (Ⅱ) carboxylates Pd3 (μ-RCO2) 6 by different reduction methods.SEM and cyclic vol tammetry (CV) were used to characterize the sam pies.The catalysts were found to generally consist of palladium nanoparticles with the diameter of 2-8 nm and large agglomerates 10-20 μm in size.The relative standard deviation of catalysts ranges from 17 to 60 %.Electrochemical tests revealed that both the donor-acceptor properties of substitutes R in the carboxylates and reduction methods affect the catalytic activity.Also the method of the carbon support (Vulcan XC-72) preprocessing is very im portant.We found out the optimal conditions for preparation of the catalyst with the highest activity.It was shown that palladium (Ⅱ) carboxylates can be successive precursors of electro-catalysts for for mic acid oxidation with the activity comparable to the activity of the commercial samples.
G.Yu.Yurkov M.I.Biryukova S.V.Kondrashov A.S.Cherniavsky
A. Baikov Institute of metallurgy and materials sciences Russian academy of sciences,Leninsky pr.49, A. Baikov Institute of metallurgy and materials sciences Russian academy of sciences,Leninsky pr.49, All-Russian Institute of aviation materials,Radio str.17,Moscow,105005 Russia
国际会议
The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)
昆明
英文
151-155
2013-11-19（万方平台首次上网日期，不代表论文的发表时间）