|
个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：校长助理
其他任职：精细化工国家重点实验室副主任，辽宁省低碳资源高值化利用重点实验室主任
性别：男
毕业院校：中科院山西煤化所
学位：博士
所在单位：化工学院
学科：工业催化. 化学工艺. 能源化工
办公地点：大连市凌工路2号大连理工大学西部校区化工楼，邮编：116024
联系方式：0411-84986112
电子邮箱：anhuilu@dlut.edu.cn
Influence of pretreatment atmospheres on the activity of Au/CeO2 catalyst for low-temperature CO oxidation
点击次数：
论文类型：期刊论文
发表时间：2011-10-05
发表刊物：CATALYSIS COMMUNICATIONS
收录刊物：Scopus、SCIE、EI
卷号：13
期号：1
页面范围：18-21
ISSN号：1566-7367
关键字：Au/CeO2; Deposition-precipitation; Pretreatment atmosphere; H-2-TPR
摘要：Au/CeO2 catalyst was prepared via a deposition-precipitation method and further pretreated in different atmospheres prior to CO oxidation. A reductive atmosphere pretreatment slightly improved the low-temperature activity of Au/CeO2. The greatest activity was achieved when Au/CeO2 catalyst was subjected to an oxidative atmosphere followed by a reductive atmosphere pretreatment. Analysis using XRD, TEM and nitrogen sorption measurement showed that pretreatment retains the crystal phase, morphology and pore structure of CeO2. However, there was a change in the interaction between gold species and CeO2 support, as revealed by H-2-TPR measurement. (C) 2011 Elsevier B.V. All rights reserved.