期刊
CHEMSUSCHEM
卷 8, 期 3, 页码 524-533出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201402999
关键词
biomass; electrochemistry; fuel cells; palladium; titanium
资金
- MIUR (Italy) FIRB project [RBFR10J4H7]
A 2m thick layer of TiO2 nanotube arrays was prepared on the surface of the Ti fibers of a nonwoven web electrode. After it was doped with Pd nanoparticles (1.5mg(Pd)cm(-2)), this anode was employed in a direct alcohol fuel cell. Peak power densities of 210, 170, and 160mWcm(-2) at 80 degrees C were produced if the cell was fed with 10wt% aqueous solutions of ethanol, ethylene glycol, and glycerol, respectively, in 2M aqueous KOH. The Pd loading of the anode was increased to 6mgcm(-2) by combining four single electrodes to produce a maximum peak power density with ethanol at 80 degrees C of 335mWcm(-2). Such high power densities result from a combination of the open 3D structure of the anode electrode and the high electrochemically active surface area of the Pd catalyst, which promote very fast kinetics for alcohol electro-oxidation. The peak power and current densities obtained with ethanol at 80 degrees C approach the output of H-2-fed proton exchange membrane fuel cells.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据