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Selective catalytic reduction of NOx with H-2 over WO3 promoted Pt/TiO2 catalyst
Liu, ZM; Lu, YN; Yuan, L; Ma, LL; Zheng, LR; Zhang, J; Hu, TD; Zheng LR(郑黎荣); Zhang J(张静); Hu TD(胡天斗)
2016
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
EISSN1873-3883
Volume188Pages:189-197
SubtypeArticle
AbstractPt/TiO2 and WO3 modified Pt/TiO2 catalysts have been investigated for the selective catalytic reduction of NOx by H-2 (H-2-SCR) in the presence of oxygen. It was found that the addition of WO3 leads to a significant promoting effect on the low-temperature activity of Pt/TiO2 catalyst and the optimal loading is 2%. Xray absorption near-edge structure (XANES) revealed the electron transfer from WO3 to Pt active sites, leading to the formation of metallic Pt, which is responsible for the low-temperature H-2-SCR of NOx. In situ DRIFTS demonstrated that the introduction of WO3 to Pt catalyst not only contributes to the formation of reactive adsorbed NOx species on the catalyst, but also promotes the formation of NH4+ species. All of these factors, collectively, account for the improved low-temperature activity of Pt-WO3/TiO2 catalyst. (C) 2016 Elsevier B.V. All rights reserved.
KeywordNitrogen oxides H-2-SCR Pt-WO3/TiO2 catalyst
DOI10.1016/j.apcatb.2016.02.008
Indexed BySCI
Language英语
WOS IDWOS:000372677500020
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/248110
Collection多学科研究中心
Recommended Citation
GB/T 7714
Liu, ZM,Lu, YN,Yuan, L,et al. Selective catalytic reduction of NOx with H-2 over WO3 promoted Pt/TiO2 catalyst[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2016,188:189-197.
APA Liu, ZM.,Lu, YN.,Yuan, L.,Ma, LL.,Zheng, LR.,...&胡天斗.(2016).Selective catalytic reduction of NOx with H-2 over WO3 promoted Pt/TiO2 catalyst.APPLIED CATALYSIS B-ENVIRONMENTAL,188,189-197.
MLA Liu, ZM,et al."Selective catalytic reduction of NOx with H-2 over WO3 promoted Pt/TiO2 catalyst".APPLIED CATALYSIS B-ENVIRONMENTAL 188(2016):189-197.
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