期刊
APPLIED CATALYSIS A-GENERAL
卷 435, 期 -, 页码 156-162出版社
ELSEVIER
DOI: 10.1016/j.apcata.2012.05.049
关键词
F-doped V2O5-WO3/TiO2; SCR; Oxygen vacancies; W5+; Superoxide ions
资金
- National Natural Science Foundation of China [51078185, U1162119]
- research fund of Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province [AE201001]
- Research Fund for the Doctoral Program of Higher Education of China [20113219110009]
A F-doped V2O5-WO3/TiO2 has been developed for low-temperature selective catalytic reduction (SCR) of NO with NH3. The aim of this novel design was to improve the activity of a catalyst with low WO3 loading. Analysis by PL spectra, XRD, XPS and EPR showed that F doping improved the interaction of WO3 with TiO2 by oxygen vacancies to facilitate the formation of W5+ that was important to improve the formation of superoxide ions. The experimental results showed that NO conversion could be improved by F doping and V1W3TiF1.35 showed the highest NO removal efficiency in SCR reaction at low temperatures. (c) 2012 Elsevier B.V. All rights reserved.
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