CO oxidation over a fine porous gold catalyst fabricated by selective leaching from an ordered AuCu3 intermetallic compound
CO oxidation over a fine porous gold catalyst fabricated by selective leaching from an ordered AuCu3 intermetallic compound
复制标题
DOI：
10.1007/s10562-007-9344-x
复制
发表时间：
2008-03-01
影响因子：
2.8
通讯作者：
Tsai, An Pang
中科院分区：
文献类型：
--
作者：
Kameoka, Satoshi;Tsai, An Pang
用50%HNO3水溶液在50℃下选择性浸取有序AuCu3金属间化合物中的铜，制备了一种微孔金催化剂，其CO氧化反应的表面积速率与Au/TiO2型催化剂相当。研究表明，金的高催化活性既不是来自于金颗粒的分散，也不是来自于金载体的周界界面。
A fine porous gold catalyst has been fabricated by selective leaching of Cu from an ordered AuCu3 intermetallic compound with 50%HNO3 aqueous solution at 50 degrees C. This catalyst exhibited comparable areal rate (mol min(-2) m(-2)-cat) with the Au/TiO2 catalyst for CO oxidation. The present study demonstrates that high catalytic activity of gold is originated neither from the presence of fine dispersed Au particles nor from Au-support perimeter interface.