期刊
JOURNAL OF PHYSICAL CHEMISTRY B
卷 106, 期 39, 页码 10215-10219出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp021296t
关键词
-
The application of a Pb2+ conducting solid electrolyte (Pb-beta alumina) to electrochemical control of catalyst performance is reported. XPS data show that pumping of Pb to/from a thin film platinum catalyst from/to the solid electrolyte provides a controlled, reversible, and reproducible way of altering the surface composition of the resulting Pt/Pb surface alloy under conditions of acetylene hydrogenation. With increasing Pb concentration a large increase in partial hydrogenation selectivity occurs from 20% (pure Pt surface) to 85% (similar to26% Pb surface alloy). The results demonstrate that the surface composition and catalytic performance of bimetallic alloy catalysts can be dramatically and reversibly altered under working conditions by electrochemical means.
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