期刊
CATALYSIS TODAY
卷 112, 期 1-4, 页码 103-106出版社
ELSEVIER
DOI: 10.1016/j.cattod.2005.11.032
关键词
SBA-15; nitrous oxide; epoxidation; hydroxylation; iron
The vapour phase hydroxylation of toluene and epoxidation of propene and 1-butene with nitrous oxide over Fe/SBA-15 catalysts was experimentally investigated. Modification of these mesoporous catalysts by the addition of KCl resulted in a significant transfer from benzylic/allylic oxidation towards aromatic/vinylic oxidation by suppressing the reactivity of nucleophilic oxygen species. Analogous to the Fe/ZSM-5 system, highly dispersed iron species residing within the pore structure are responsible for generating the electrophilic oxygen species upon nitrous oxide decomposition. While substrate conversions are generally low (< 4%), the catalysts offer phenolic/epoxide selectivities of similar to 70% in an environmentally benign one-step reaction. (c) 2005 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