High Performance Catalysts BaCoO3−CeO2 Prepared by the One-Pot Method for NO Direct Decomposition

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2020-09-04
Major/Subject
Mcode
Degree programme
Language
en
Pages
7
4297-4303
Series
ChemCatChem, Volume 12, issue 17
Abstract
NO direct decomposition is the most promising but also the most challenging approach for nitrogen oxides mitigation. Developing high performance catalysts is greatly desirable to promote the application of this technology. The present catalysts BaCoO3−CeO2 prepared by the one-pot method show superior activity towards NO direct decomposition, robust oxygen resistance and decent durability. The NO conversion to N2 of 5 %BaCoO3−CeO2 catalyst is 57.2 %, 70.1 % and 75.6 % at 700, 750 and 800 °C, respectively. It still maintains at 54.3 % even in the presence of 10 vol % O2 at 800 °C and is stable in 1 vol % O2 at least for 24 h at 750 °C. Such impressive performance is ascribed to the unique properties of CeO2, strong interaction between perovskite and CeO2, and microstructure of the catalysts rendered by the citric acid-nitrate one-pot method.
Description
Keywords
Cerium, Nitrogen oxide, NO direct decomposition, Perovskite
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Citation
Xie, P, Yong, X, Wei, M, Li, Y & Zhang, C 2020, ' High Performance Catalysts BaCoO 3 −CeO 2 Prepared by the One-Pot Method for NO Direct Decomposition ', ChemCatChem, vol. 12, no. 17, pp. 4297-4303 . https://doi.org/10.1002/cctc.202000701