Issue 66, 2023

Amorphous Fe–Co oxide as an active and durable bifunctional catalyst for the urea-assisted H2 evolution reaction in seawater

Abstract

In this study, we prepared amorphous iron-cobalt oxide through the dealloying of trimetallic FeCoAl, showing excellent performance in both urea oxidation and hydrogen evolution reactions (UOR and HER) in alkaline seawater. The catalyst demonstrated stable UOR and HER activity during long-term operations due to the abundant active sites and oxygen vacancies. The catalyst required applied potentials of 1.52 and −0.185 V to yield 100 mA cm−2 for the UOR and HER, respectively. Moreover, when used as both the cathode and anode, the electrolyzer required a working voltage of 1.68 V to yield 100 mA cm−2 for urea-assisted hydrogen production.

Graphical abstract: Amorphous Fe–Co oxide as an active and durable bifunctional catalyst for the urea-assisted H2 evolution reaction in seawater

Supplementary files

Article information

Article type
Communication
Submitted
18 ሜይ 2023
Accepted
21 ጁላይ 2023
First published
22 ጁላይ 2023

Chem. Commun., 2023,59, 9992-9995

Amorphous Fe–Co oxide as an active and durable bifunctional catalyst for the urea-assisted H2 evolution reaction in seawater

T. Wei, G. Meng, Y. Zhou, Z. Wang, Q. Liu, J. Luo and X. Liu, Chem. Commun., 2023, 59, 9992 DOI: 10.1039/D3CC02419A

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