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Single‐atom Automobile Exhaust Catalysts
Author(s) -
Lu Yubing,
Zhang Zihao,
Lin Fan,
Wang Huamin,
Wang Yong
Publication year - 2020
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.202000407
Subject(s) - catalysis , reactivity (psychology) , exhaust gas , atom (system on chip) , metal , hydrocarbon , nanotechnology , thermal stability , materials science , catalytic efficiency , chemistry , combinatorial chemistry , chemical engineering , organic chemistry , engineering , medicine , alternative medicine , pathology , embedded system
Single‐atom catalysts (SACs) with isolated metal centers are attracting great research interest because of their maximized metal utilization rates and unique structures. In the last decade, significant efforts have been made to design highly efficient and cost‐effective SACs with applications in automobile exhaust aftertreatment. SACs have not only demonstrated their high potential for improving the catalytic performance of current automobile exhaust catalysts but also provided an ideal platform for understanding the origins of catalyst reactivity. In this review, we summarize the general strategies for promoting the reactivity of metal SACs while maintaining their thermal stability during exhaust‐abatement‐related reactions. Highlights are provided on well‐performed SACs for CO oxidation, unburnt hydrocarbon (HC) oxidation, and the selective catalytic reduction of NO x . The reaction mechanism and structure‐performance relationship of SAC during these reactions are also discussed. Finally, perspectives are given on the trending research fields for designing more efficient single‐atom automobile exhaust catalysts in the future.