期刊
CATALYSIS COMMUNICATIONS
卷 9, 期 14, 页码 2353-2356出版社
ELSEVIER
DOI: 10.1016/j.catcom.2008.05.030
关键词
Pd-Au catalysts; sulfur poisoning; benzaldehyde hydrogenation
The sulfur poisoning of carbon-supported bimetallic Pd-Au systems was investigated. Catalytic activity results for benzald-ehyde hydrogenation clearly show that gold addition improves catalyst resistance to sulfur poisoning with respect to the monometallic Pd-based sample. Samples were characterized by pulse-flow CO chemisorption and XRD in order to correlate the structural properties with the resistance to sulfur poisoning. Gold addition prevents the progressive transformation of Pd in Pd4S in the presence of sulfur compounds by hindering the availability of ensembles of four Pd atoms in the correct geometrical configuration. (C) 2008 Elsevier B.V. All rights reserved.
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