期刊
CHEMISTRY OF MATERIALS
卷 23, 期 7, 页码 1659-1667出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm101147y
关键词
catalysis and catalysts; nanomaterials (nanopartides; nanotubes; etc.); ionic conductors (including solid (inorganic); polymer electrolytes
We demonstrate cathodes for solid acid fuel cells fabricated by vapor deposition of platinum from the metalorganic precursor Pt(acac)(2) on the solid acid CsH2PO4 at 210 degrees C. A network of platinum nanoparticles with diameters of 2-4 nm serves as both the oxygen reduction catalyst and the electronic conductor in the electrode. Electrodes with a platinum content of 1.75 mg/cm(2) are more active for oxygen reduction than previously retorted electrodes with a platinum content of 7.5 mg/cm(2). Electrodes containing < 1.75 mg/cm(2) of platinum show significantly reduced catalytic activity and increased ohmic resistance indicative of a highly discontinuous catalytic-electronic platinum network.
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