Structure and electrocatalysis of sputtered RuPt thin-film electrodes.
Structure and electrocatalysis of sputtered RuPt thin-film electrodes.
复制标题
溅射 RuPt 薄膜电极的结构和电催化。
DOI：
10.1021/jp050616g
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Y. Sung
中科院分区：
文献类型：
--
作者：
Tae;Seong;L. E. Jones;M. Toney;Kyung‐Won Park;Y. Sung
研究了射频磁控溅射制备的薄膜电极的结构和电化学性质。掠入射X射线衍射数据表明，随着Ru含量的增加，样品由面心立方(FCC)结构向六方立方填充(HCP)结构转变。这一转变是在32~58%Ru之间逐渐发生的，这与块体破裂相图有很大的不同。薄膜电极对甲醇氧化的催化活性在40-60%Ru附近有一个宽峰，这与以前的报道一致。讨论了催化活性与薄膜结构的关系，并与前人的研究结果进行了对比。
The structural and electrochemical properties of RuPt thin-film electrodes fabricated by radio frequency (rf) magnetron sputtering have been investigated. Grazing incidence X-ray diffraction data show a transition from a face-centered cubic (fcc) to hexagonal cubic-packed (hcp) structure as the Ru percentage increases. The transition occurs gradually between 32 and 58% Ru, which is significantly different from the bulk RuPt phase diagram. The catalytic activity of the thin-film electrodes for methanol oxidation shows a broad peak near 40-60% Ru, consistent with previous reports. The relationship between catalytic activity and film structure is discussed and contrasted with previous investigations.