Highly active and stable Ir nanoclusters derived from Ir1/MgAl2O4 single-atom catalysts

Single-atom catalysts (SACs) prepared by the atom trapping method often possess high stability yet have limited advantages regarding catalytic performance due to the strong metal–support interaction. Using these SACs as seeds to develop supported nanoclusters or nanoparticles has, however, been prov...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 2021-04, Vol.154 (13), p.131105-131105
Main Authors: Yang, Jingyi, Zhang, Jingcai, Jiang, Qike, Su, Yang, Cui, Yitao, Li, Xianquan, Zhang, Shengxin, Li, Weizhen, Qiao, Botao
Format: Article
Language:English
Subjects:
High temperature
Industrial applications
Nanoclusters
Nanoparticles
Single atom catalysts
Trapping
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Single-atom catalysts (SACs) prepared by the atom trapping method often possess high stability yet have limited advantages regarding catalytic performance due to the strong metal–support interaction. Using these SACs as seeds to develop supported nanoclusters or nanoparticles has, however, been proven to be effective in improving the catalysts’ intrinsic activity. Herein, we have prepared extremely stable Ir SACs supported by MgAl2O4 via atomic trapping and used them as seeds to fabricate highly active and stable Ir nanocluster catalysts by high-temperature reduction. The activity toward N2O decomposition increased by more than ten times compared with that of the parent Ir SACs. This study provides a new avenue to design and develop highly active and stable catalysts for industrial use.
ISSN:0021-9606
1089-7690
DOI:10.1063/5.0048565