Study of carbon-supported Au catalyst as the cathodic catalyst in a direct formic acid fuel cell prepared using a polyvinyl alcohol protection method
Data(s) |
2007
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Resumo |
In this paper, it is reported for the first time that a carbon-supported Au (Au/C) catalyst for the cathodic catalyst in a direct formic acid fuel cell (DFAFC) was prepared using a polyvinyl alcohol (PVA) protection method. The results indicated that for oxygen reduction, the electrocatalytic activity of the Au/C catalyst prepared with the PVA protection method is much better than that of a Au/C catalyst prepared with the pre-precipitation method. This is due to the small average size and low relative crystallinity of the An particles in the Au/C catalyst prepared by the PVA protection method, compared to that of the Au/C catalyst prepared by the pre-precipitation method, illustrating that the average size and the relative crystallinity of the ALL particles has an effect on the electrocatalytic activity of the Au/C catalyst for oxygen reduction. In addition, because An has no electrocatalytic activity for the oxidation of formic acid, the Au/C catalyst possesses a high formic acid tolerance. After the electrocatalytic activity of the Au/C catalyst for the oxygen reduction is improved, it is suitable to be used as the cathodic catalyst in DFAFC. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Chen W;Tang YW;Bao JC;Gao Y;Liu CP;Xing W;Lu TH.Study of carbon-supported Au catalyst as the cathodic catalyst in a direct formic acid fuel cell prepared using a polyvinyl alcohol protection method,JOURNAL OF POWER SOURCES,2007 ,167(2):315-318 |
Palavras-Chave | #LIQUID-PHASE OXIDATION #OXYGEN REDUCTION #METHANOL OXIDATION #ANODIC CATALYST #PARTICLE-SIZE #GOLD CATALYST #PD CATALYST #ELECTROOXIDATION #ELECTROCATALYSTS #NANOPARTICLES |
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期刊论文 |