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Issue 71, 2020
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A Janus antimony sulfide catalyst for highly selective N2 electroreduction

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Abstract

The antimony sulfide Sb2S3 is firstly explored as a Janus catalyst for highly selective nitrogen reduction reaction (NRR). The developed Sb2S3 nanoflowers delivered an excellent faradaic efficiency of 24.1% and a high NH3 yield of 33.4 μg h−1 mg−1 at −0.3 V. Theoretical calculations revealed that the high NRR selectivity of Sb2S3 originated from the Janus role of active Sb centers: on one hand, Sb exhibited a strong Sb5p–N2p hybridization upon initial N2 protonation, capable of effectively activating the NRR with a low reaction barrier. On the other hand, Sb could concurrently impede the hydrogen evolution by hindering the H+ adsorption.

Graphical abstract: A Janus antimony sulfide catalyst for highly selective N2 electroreduction

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Supplementary files

Article information


Submitted
10 Jul 2020
Accepted
31 Jul 2020
First published
31 Jul 2020

Chem. Commun., 2020,56, 10345-10348
Article type
Communication

A Janus antimony sulfide catalyst for highly selective N2 electroreduction

H. Nan, Y. Liu, Q. Li, P. Shen and K. Chu, Chem. Commun., 2020, 56, 10345
DOI: 10.1039/D0CC04764C

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