中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 过程工程研究所
  3. 中国科学院过程工程研究所
Interactions between CO oxidation and selective catalytic reduction of NO with NH3 over Mn-based catalysts

文献类型：期刊论文

作者Wang, Liyan2; Wang, Bin1,2; Guo, Yangyang1; Zheng, Yang1; Zhu, Tingyu1,3
刊名CATALYSIS SCIENCE & TECHNOLOGY
出版日期2022-06-01
页码13
ISSN号2044-4753
DOI10.1039/d2cy00776b
英文摘要The simultaneous reaction of CO oxidation and selective catalytic reduction of NOx with NH3 (NH3-SCR) is of great challenge in heterogeneous catalysis, especially at low temperatures, and the interaction between these two reactions is not clear. In this work, a series of alpha-MnO2-M (M = Fe, Co, Ce, Cu) nanorod catalysts were synthesized by a hydrothermal method. The alpha-MnO2-Cu nanorod catalyst showed the highest catalytic performance with over 85% NOx and CO removal efficiency from 150 to 250 degrees C. The addition of Cu species increased the redox ability, total oxygen storage, surface acidic sites and total CO adsorption capacity, which should be responsible for the enhanced SCR and CO oxidation activity of the alpha-MnO2-Cu nanorod catalyst. The interaction of CO oxidation and SCR reaction has been investigated over the alpha-MnO2-Cu nanorod catalyst. CO reduced the NO adsorption, which further inhibited the L-H mechanism, reduced the SCR activity and narrowed the temperature window, especially the reduction of N-2 selectivity. NH3 negatively affected CO oxidation by reducing the generation of the Mn-COO formate intermediate, while NO promoted CO oxidation through the decomposition of intermediates, which was formed by the combination of nitrate and nitrite with gaseous CO. When NH3 and NO existed together, CO oxidation was dominated by the promotional effect of NO.
WOS关键词LOW-TEMPERATURE SCR ; TRANSFORM INFRARED-SPECTROSCOPY ; MIXED-OXIDE CATALYSTS ; CARBON-MONOXIDE ; PERFORMANCE ; NH3-SCR ; REMOVAL ; CEO2 ; H2O ; NI
资助项目National Science Foundation of China[52170119] ; National Science Foundation of China[51778600] ; Open Foundation of State Key Laboratory of Mineral Processing[BGRIMM-KJSKL-2021-05]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000811036500001
出版者ROYAL SOC CHEMISTRY
资助机构National Science Foundation of China ; Open Foundation of State Key Laboratory of Mineral Processing
源URL[http://ir.ipe.ac.cn/handle/122111/53854]  
专题中国科学院过程工程研究所
通讯作者Guo, Yangyang; Zhu, Tingyu
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China
2.China Univ & Min Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Liyan,Wang, Bin,Guo, Yangyang,et al. Interactions between CO oxidation and selective catalytic reduction of NO with NH3 over Mn-based catalysts[J]. CATALYSIS SCIENCE & TECHNOLOGY,2022:13.
APA Wang, Liyan,Wang, Bin,Guo, Yangyang,Zheng, Yang,&Zhu, Tingyu.(2022).Interactions between CO oxidation and selective catalytic reduction of NO with NH3 over Mn-based catalysts.CATALYSIS SCIENCE & TECHNOLOGY,13.
MLA Wang, Liyan,et al."Interactions between CO oxidation and selective catalytic reduction of NO with NH3 over Mn-based catalysts".CATALYSIS SCIENCE & TECHNOLOGY (2022):13.

入库方式： OAI收割

来源：过程工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。