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Effects of the morphology and crystal-plane of TiO2 on NH3-SCR performance and K tolerance of V2O5-WO3/TiO2 catalyst

文献类型：期刊论文

作者Cao, Jun1,2,3,4; Liu, Weizao1,4; Kang, KeKe2,3; Chen, Li2,3; Qiao, Xu1,4; Yao, Xiaojiang2,3
刊名APPLIED CATALYSIS A-GENERAL
出版日期2021-08-05
卷号623页码:13
ISSN号0926-860X
关键词Morphology and crystal-plane V2O5-WO3/TiO2 catalyst K tolerance NH3-SCR Reaction mechanism
DOI10.1016/j.apcata.2021.118285
通讯作者Liu, Weizao(liuwz@cqu.edu.cn) ; Yao, Xiaojiang(yaoxj@cigit.ac.cn)
英文摘要V2O5-WO3/TiO2 is the commercial NH3-SCR catalyst, the morphology and crystal-plane of its support can influence the denitration performance and K tolerance efficiently. TiO2 nano-rods (TiO2-NRs, mainly exposed the {100} facets) has larger BET surface area than those of TiO2 nano-octahedrons (TiO2-NOs, mainly exposed the {101} facets) and TiO2 nano-truncated octahedrons (TiO2-NTs, mainly exposed the {001} facets). The larger BET surface area was conducive to the dispersion of active species, thereby generating more active sites and enhancing the amount of V5+ ratio. Moreover, there was a stronger interaction between the active species (V2O5 and WO3) and TiO2-NRs support, which led to the increase of chemisorbed oxygen ratio and the improvement of surface acidity and redox ability. Furthermore, NH3-SCR reaction over V2O5-WO3/TiO2-NRs (i.e., VWTi-NRs) catalyst followed by both Langmuir-Hinshelwood (L-H) and Eley-Rideal (E-R) mechanisms. While it only followed by an L-H mechanism over V2O5-WO3/TiO2- NOs (i.e., VWTi-NOs) and V2O5-WO3/TiO2-NTs (i.e., VWTi-NTs) catalysts.
资助项目National Natural Science Foundation of China[21876168] ; National Natural Science Foundation of China[22076180] ; Youth Innovation Promotion Association of CAS[2019376] ; Chongqing Bayu Scholar Program (Young Scholar)[YS2020048] ; Chongqing Science and technology Bureau[cstc2018jszx-zdyfxmX0018]
WOS研究方向Chemistry ; Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:000686137900005
源URL[http://119.78.100.138/handle/2HOD01W0/13921]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Liu, Weizao; Yao, Xiaojiang
作者单位1.Chongqing Univ, Coll Mat Sci & Engn, Engn Res Ctr Energy & Environm Chongqing, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Res Ctr Atmospher Environm, Key Lab Reservoir Aquat Environm CAS, Chongqing 400714, Peoples R China
3.Univ Chinese Acad Sci UCAS Chongqing, Chongqing Sch, Coll Resources & Environm, Chongqing 400714, Peoples R China
4.Chongqing Univ, Chongqing Key Lab Vanadium Titanium Met & New Mat, Chongqing 400044, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Jun,Liu, Weizao,Kang, KeKe,et al. Effects of the morphology and crystal-plane of TiO2 on NH3-SCR performance and K tolerance of V2O5-WO3/TiO2 catalyst[J]. APPLIED CATALYSIS A-GENERAL,2021,623:13.
APA Cao, Jun,Liu, Weizao,Kang, KeKe,Chen, Li,Qiao, Xu,&Yao, Xiaojiang.(2021).Effects of the morphology and crystal-plane of TiO2 on NH3-SCR performance and K tolerance of V2O5-WO3/TiO2 catalyst.APPLIED CATALYSIS A-GENERAL,623,13.
MLA Cao, Jun,et al."Effects of the morphology and crystal-plane of TiO2 on NH3-SCR performance and K tolerance of V2O5-WO3/TiO2 catalyst".APPLIED CATALYSIS A-GENERAL 623(2021):13.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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