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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Professor
性别：男
毕业院校：奥地利University of Graz
学位：博士
所在单位：环境学院
学科：环境工程. 环境科学. 水科学与技术
办公地点：大连理工大学环境学院
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Low temperature CO oxidation over Ag/SBA-15 nanocomposites prepared via in-situ "pH-adjusting" method
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论文类型：期刊论文
发表时间：2011-11-30
发表刊物：CATALYSIS COMMUNICATIONS
收录刊物：EI、SCIE、Scopus
卷号：16
期号：1
页面范围：11-14
ISSN号：1566-7367
关键字：Ag/SBA-15; pH-adjusting; CO oxidation; H(2)-TPR
摘要：The catalytic activity for CO oxidation over Ag/SBA-15 catalysts prepared by in-situ "pH-adjusting" method is studied in this paper. The prepared silver catalyst (7.8 wt%) under pH = 5 condition gives 98% of CO oxidation at 70 degrees C, as compared to 140 degrees C with conventional silver catalyst without pH adjusting (6.1 wt%). However, more Ag(2)O clusters are formed inside the channels with the further pH increasing, resulting in the low catalytic activity for CO oxidation. Therefore the pH value shows significant effect on the silver content and the species state, consequently affecting the catalytic activity of Ag/SBA-15 catalysts for CO oxidation. (C) 2011 Elsevier B.V. All rights reserved.