Issue 12, 2023

High-efficiency electroreduction of nitrite to ammonia on a Cu@TiO2 nanobelt array

Abstract

Electrochemical nitrite (NO2) reduction is a potential and sustainable route to produce high-value ammonia (NH3), but it requires highly active electrocatalysts. Herein, Cu nanoparticles anchored on a TiO2 nanobelt array on a titanium plate (Cu@TiO2/TP) are reported as a high-efficiency electrocatalyst for NO2-to-NH3 conversion. The designed Cu@TiO2/TP catalyst exhibits outstanding catalytic performance toward the NO2RR, with a high NH3 yield of 760.5 μmol h−1 cm−2 (237.7 μmol h−1 mgcat.−1) and an excellent faradaic efficiency of 95.3% in neutral solution. Meanwhile, it also presents strong electrochemical stability during cyclic tests and long-term electrolysis.

Graphical abstract: High-efficiency electroreduction of nitrite to ammonia on a Cu@TiO2 nanobelt array

Supplementary files

Article information

Article type
Communication
Submitted
19 Nov. 2022
Accepted
13 Janv. 2023
First published
16 Janv. 2023

Chem. Commun., 2023,59, 1625-1628

High-efficiency electroreduction of nitrite to ammonia on a Cu@TiO2 nanobelt array

L. Ouyang, X. Fan, Z. Li, X. He, S. Sun, Z. Cai, Y. Luo, D. Zheng, B. Ying, J. Zhang, A. A. Alshehri, Y. Wang, K. Ma and X. Sun, Chem. Commun., 2023, 59, 1625 DOI: 10.1039/D2CC06261E

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