期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 43, 期 33, 页码 16038-16048出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.07.057
关键词
Mn/TiO2 catalyst; SCR; Mo modification; Promotion
资金
- National Key R&D Program of China [2018YFB0605002]
In this work, Mo-modified Mn/TiO2 catalysts synthetized by co-precipitation method were applied in the SCR abatement of NOx by NH3. Ranging from 50 to 400 degrees C, Mn/TiO2 modified with Mo showed higher efficiency in SCR reaction than Mn/TiO2 without Mo. Among Mn/TiO2 catalysts with different Mo doping amount, MnMo/TiO2-0.04 catalyst showed not only the highest SCR activity but also the best N-2 selectivity. Furthermore, MnMo/TiO2-0.04 also exhibited stronger resistance to SO2 poisoning compared with Mn/TiO2. On the basis of the characterization means including BET, XRD, H-2-TPR, XPS and NH3-TPD, MnMo/TiO2-0.04 was characterized with the decreased crystallinity, the increased reducibility and more surface acid sites, along with the enrichment of surface adsorbed oxygen species and Mn4+ species. Furthermore, the analysis results of in situ DRIFT study showed that Langmuir-Hinshewood (L-H) model should be employed in explaining the accelerated SCR reaction over MnMo/TiO2-0.04. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. 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