Single-atom automobile exhaust catalysts

Lu, Yubing; Zhang, Zihao; Lin, Fan; Wang, Huamin; Wang, Yong

doi:10.1002/cnma.202000407

Single-atom automobile exhaust catalysts

Journal Article · Tue Dec 01 04:00:00 EST 2020 · ChemNanoMat

DOI:https://doi.org/10.1002/cnma.202000407· OSTI ID:1770296

Lu, Yubing ^[1]; Zhang, Zihao ^[2]; Lin, Fan ^[1]; Wang, Huamin ^[1]; Wang, Yong ^[3]

BATTELLE (PACIFIC NW LAB)
MULTIPLE CONTRACTORS
WASHINGTON STATE UNIV

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 costeffective 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 NOx. 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.

Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-76RL01830

OSTI ID:: 1770296

Report Number(s):: PNNL-SA-155759

Journal Information:: ChemNanoMat, Journal Name: ChemNanoMat Journal Issue: 12 Vol. 6

Country of Publication:: United States

Language:: English

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