Issue 7, 2023

Rare-earth La-doped VS2−x for electrochemical nitrate reduction to ammonia

Abstract

We report rare-earth La-doped VS2−x enriched with S-vacancies (La-VS2−x) towards the electrochemical nitrate reduction to ammonia (NO3RR), which shows a maximum NH3-faradaic efficiency of 96.6% with a corresponding NH3 yield rate of 11.3 mg h−1 cm−2 at −0.6 V vs. RHE. Theoretical computations unveil that La-dopants and S-vacancies synergistically promote NO3 activation, suppress hydrogen evolution and lower the energetic barriers, leading to the enhanced NO3RR activity and selectivity of La-VS2−x.

Graphical abstract: Rare-earth La-doped VS2−x for electrochemical nitrate reduction to ammonia

Supplementary files

Article information

Article type
Research Article
Submitted
29 Dec 2022
Accepted
13 Feb 2023
First published
14 Feb 2023

Inorg. Chem. Front., 2023,10, 2014-2021

Rare-earth La-doped VS2−x for electrochemical nitrate reduction to ammonia

G. Wang, P. Shen, K. Chen, Y. Guo, X. Zhao and K. Chu, Inorg. Chem. Front., 2023, 10, 2014 DOI: 10.1039/D2QI02757G

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