Journal
CHEMICAL COMMUNICATIONS
Volume 59, Issue 66, Pages 9992-9995Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d3cc02419a
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In this study, amorphous iron-cobalt oxide was prepared through the dealloying of trimetallic FeCoAl, exhibiting excellent performance in both urea oxidation and hydrogen evolution reactions (UOR and HER) in alkaline seawater. The catalyst showed stable UOR and HER activity due to the presence of abundant active sites and oxygen vacancies. The applied potentials of 1.52 and -0.185 V were required to achieve 100 mA cm(-2) for the UOR and HER, respectively. Furthermore, 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.
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.
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