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Effects of MoO3 and CeO2 doping on the decomposition and reactivity of NH4HSO4 on V2O5/TiO2 catalysts
Xu, Wenqing1,2; Gao, Lei1,3; Yang, Yang1; Zhu, Tingyu1,2; Qi, Guisheng3
2020-05-25
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Pages11
AbstractThe deposition of NH4HSO4 on catalysts is one of the key issues for selective catalytic reduction of NOx. In this study, NH4HSO4 was preloaded on catalysts, and the effects of MoO3 and CeO2 doping on the decomposition and reactivity of NH4HSO4 on V2O5/TiO2 catalysts are studied. The results show that the introduction of MoO3 and CeO2 significantly promoted NOx conversion on the V2O5/TiO2 catalysts. Doping with MoO3 could effectively enhance the S and H2O resistance of the catalysts. Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) analysis indicate that it is the strong chemical interactions between NH4HSO4 and the catalysts that are adverse to the decomposition of NH4HSO4. However, doping with MoO3 apparently inhibits these interactions, which significantly decrease the decomposition temperature of NH4HSO4. In situ FTIR experiments show that the NH4+ in preloaded NH4HSO4 could react with gaseous NO on catalysts, and doping with MoO3 could facilitate the reaction rate.
KeywordAmmonium bisulfate Decomposition Low-temperature SCR MoO3 doping CeO2 doping V2O5 TiO2 catalyst
DOI10.1007/s11356-020-09343-6
Language英语
WOS KeywordSIMULTANEOUS REMOVAL ; SCR PERFORMANCE ; SO2 RESISTANCE ; NO REDUCTION ; TEMPERATURE ; NH3 ; BEHAVIORS ; NH3-SCR ; OXIDES ; CERIA
Funding ProjectNational Key Research and Development Program of China[2016YFC0204103] ; Key Research and Development Program of Shanxi province[201703D111018]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
Funding OrganizationNational Key Research and Development Program of China ; Key Research and Development Program of Shanxi province
WOS IDWOS:000535460400009
PublisherSPRINGER HEIDELBERG
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40873
Collection中国科学院过程工程研究所
Corresponding AuthorXu, Wenqing
Affiliation1.Chinese Acad Sci, Res Ctr Proc Pollut Control, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
3.North Univ China, Shanxi Prov Key Lab Higee Oriented Chem Engn, Taiyuan 030051, Shanxi, Peoples R China
Recommended Citation
GB/T 7714
Xu, Wenqing,Gao, Lei,Yang, Yang,et al. Effects of MoO3 and CeO2 doping on the decomposition and reactivity of NH4HSO4 on V2O5/TiO2 catalysts[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020:11.
APA Xu, Wenqing,Gao, Lei,Yang, Yang,Zhu, Tingyu,&Qi, Guisheng.(2020).Effects of MoO3 and CeO2 doping on the decomposition and reactivity of NH4HSO4 on V2O5/TiO2 catalysts.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,11.
MLA Xu, Wenqing,et al."Effects of MoO3 and CeO2 doping on the decomposition and reactivity of NH4HSO4 on V2O5/TiO2 catalysts".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020):11.
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