A novel mechanism for poisoning of metal oxide SCR catalysts: base–acid explanation correlated with redox properties

A novel mechanism is proposed for the poisoning effect of acid gases and N 2 O formation on SCR catalysts involving base–acid properties correlated with redox ability of M–O or M–OH (M = Ce or V) of metal oxides and the strength of their basicity responsible for resistance to HCl and SO 2 at medium...

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Published inChemical communications (Cambridge, England) Vol. 50; no. 70; pp. 10031 - 10034
Main Authors Chang, Huazhen, Li, Junhua, Su, Wenkang, Shao, Yuankai, Hao, Jiming
Format Journal Article
LanguageEnglish
Published England 11.09.2014
Subjects
Basicity
Catalysis
Catalysts
chemical reactions
Correlation
Formations
gases
hydrochloric acid
Metal oxides
nitrous oxide
Nitrous oxides
Poisoning
sulfur dioxide
temperature
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Summary:A novel mechanism is proposed for the poisoning effect of acid gases and N 2 O formation on SCR catalysts involving base–acid properties correlated with redox ability of M–O or M–OH (M = Ce or V) of metal oxides and the strength of their basicity responsible for resistance to HCl and SO 2 at medium and low temperatures.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/C4CC02991G