Issue 38, 2023

Efficient electrocatalytic reduction of nitrate to ammonia over fibrous SmCoO3 under ambient conditions

Abstract

We report SmCoO3 nanofibers as an efficient catalyst for nitrate reduction to ammonia. This catalyst achieves a large NH3 yield of 14.4 mg h−1 mgcat.−1 and a high faradaic efficiency of 81.3% at −1.0 V vs. RHE in 0.1 M PBS with 0.1 M NaNO3, and it also displays excellent electrochemical durability and structural stability. Theoretical calculations indicate that Sm–O and Co–O bonds have an incredibly low adsorption energy of −0.1 eV, which can significantly reduce the applied potential and hence enhance the catalytic activity.

Graphical abstract: Efficient electrocatalytic reduction of nitrate to ammonia over fibrous SmCoO3 under ambient conditions

Supplementary files

Article information

Article type
Communication
Submitted
24 fev 2023
Accepted
04 apr 2023
First published
05 apr 2023

Chem. Commun., 2023,59, 5697-5700

Efficient electrocatalytic reduction of nitrate to ammonia over fibrous SmCoO3 under ambient conditions

P. Hu, S. Hu, H. Du, Q. Liu, H. Guo, K. Ma and T. Li, Chem. Commun., 2023, 59, 5697 DOI: 10.1039/D3CC00889D

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