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High Performance Catalysts BaCoO 3 −CeO 2 Prepared by the One‐Pot Method for NO Direct Decomposition
Author(s) -
Xie Pingping,
Yong Xin,
Wei Miao,
Li Yongdan,
Zhang Cuijuan
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202000701
Subject(s) - catalysis , decomposition , microstructure , perovskite (structure) , materials science , citric acid , chemical engineering , nitrogen , chemistry , inorganic chemistry , metallurgy , organic chemistry , engineering
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 BaCoO 3 −CeO 2 prepared by the one‐pot method show superior activity towards NO direct decomposition, robust oxygen resistance and decent durability. The NO conversion to N 2 of 5 %BaCoO 3 −CeO 2 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 % O 2 at 800 °C and is stable in 1 vol % O 2 at least for 24 h at 750 °C. Such impressive performance is ascribed to the unique properties of CeO 2 , strong interaction between perovskite and CeO 2 , and microstructure of the catalysts rendered by the citric acid‐nitrate one‐pot method.