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

被引：90
作者：
Wang, Yu [1 ,2 ]
Zhu, Xiaobing [2 ]
Crocker, Mark [3 ]
Chen, Bingbing [1 ,2 ]
Shi, Chuan [1 ,2 ]
机构：
[1] Dalian Univ Technol, Key Lab Ind Ecol & Environm Engn MOE, Dalian, Peoples R China
[2] Dalian Univ Technol, Lab Plasma Phys Chem, Dalian, Peoples R China
[3] Univ Kentucky, Ctr Appl Energy Res, Lexington, KY 40511 USA
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2014年 / 160卷
基金：
中国国家自然科学基金;
关键词：
Mn0.75Co2.25O4; catalyst; HCHO oxidation; CO oxidation; Water influence; Stability; LOW-TEMPERATURE OXIDATION; ROOM-TEMPERATURE; FORMALDEHYDE REMOVAL; METAL-OXIDES; WATER-VAPOR; AU/CEO2; CATALYST; CARBON-MONOXIDE; AIR; OXYGEN; CO3O4;
D O I：
10.1016/j.apcatb.2014.06.011
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
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.
引用
收藏
页码：542 / 551
页数：10
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