Issue 13, 2023

Main-group indium single-atom catalysts for electrocatalytic NO reduction to NH3

Abstract

Main-group metal elements show great potential for exploring high-performance catalysts for electrochemical reduction of NO to NH3 (NORR) but remain largely unexplored. Herein, as a proof-of-concept, main-group In single atoms confined in an amorphous MoO3 substrate (In1/a-MoO3) are explored as an efficient NORR catalyst, showing a maximum NH3 yield of 242.6 μmol h−1 cm−2 and NH3-faradaic efficiency of 92.8%. Further experiments and theoretical results identify single-site In atoms as the dominating active centers to simultaneously inhibit the hydrogen evolution and optimize the hydrogenation energetics of the NO-to-NH3 pathway.

Graphical abstract: Main-group indium single-atom catalysts for electrocatalytic NO reduction to NH3

Supplementary files

Article information

Article type
Communication
Submitted
02 2月 2023
Accepted
03 3月 2023
First published
06 3月 2023

J. Mater. Chem. A, 2023,11, 6814-6819

Main-group indium single-atom catalysts for electrocatalytic NO reduction to NH3

K. Chen, N. Zhang, F. Wang, J. Kang and K. Chu, J. Mater. Chem. A, 2023, 11, 6814 DOI: 10.1039/D3TA00606A

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