石川

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教授

博士生导师

硕士生导师

性别:女

毕业院校:大连理工大学

学位:博士

所在单位:化学学院

学科:物理化学. 化学工程

办公地点:知化楼C201

电子邮箱:chuanshi@dlut.edu.cn

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A comparative study of the catalytic oxidation of HCHO and CO over Mn0.75Co2.25O4 catalyst: The effect of moisture

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论文类型:期刊论文

发表时间:2014-11-01

发表刊物:APPLIED CATALYSIS B-ENVIRONMENTAL

收录刊物:SCIE、EI

卷号:160

期号:1

页面范围:542-551

ISSN号:0926-3373

关键字:Mn0.75Co2.25O4 catalyst; HCHO oxidation; CO oxidation; Water influence; Stability

摘要:The influence of moisture on the activity and stability of Mn0.75Co2.25O4 catalyst for HCHO and CO oxidation was compared and investigated. Totally opposite effects of relative humidity (RH) on the reactions were observed: with increase of RH (0-90%), the activity for HCHO oxidation was enhanced, whereas the activity for CO oxidation was greatly decreased. However, in both cases the catalyst lifetime was prolonged in the presence of moisture (RH = 50%). Such modifications were directly evidenced by correlating in-situ DRIFTS data, TPO results and MS-IRAS studies, which clarified the effects of water on the activity and stability of Mn0.75Co2.25O4 catalyst for HCHO and CO oxidation. (C) 2014 Elsevier B.V. All rights reserved.