Advancements and prospects of perovskite-based fuel electrodes in solid oxide cells for CO<sub>2</sub> electrolysis to CO

Xu, Ruijia; Liu, Shuai; Yang, Meiting; Yang, Guangming; Luo, Zhixin; Ran, Ran; Zhou, Wei; Shao, Zongping

doi:10.1039/d4sc03306j

Chem. Sci.

2024

DOI: 10.1039/d4sc03306j

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Advancements and prospects of perovskite-based fuel electrodes in solid oxide cells for CO₂ electrolysis to CO

Ruijia Xu,

Shuai Liu,

Meiting Yang

et al.

Abstract: Developments and prospects for solid oxide cells using a perovskite-based fuel electrode for CO2 electrolysis to CO.

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Homogeneously Mixed Cu–Co Bimetallic Catalyst Derived from Hydroxy Double Salt for Industrial-Level High-Rate Nitrate-to-Ammonia Electrosynthesis

Jang,

Oh,

Lee

et al. 2024

J. Am. Chem. Soc.

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Electrocatalytic nitrate reduction reaction (NO 3 RR) presents an innovative approach for sustainable NH 3 production. However, selective NH 3 production is hindered by the multiple intermediates involved in the NO 3 RR process and the competitive hydrogen evolution reaction. Hence, the development of highly efficient NO 3 RR catalysts is paramount. Herein, we report highly efficient bimetallic catalysts derived from hydroxy double salt (HDS). Under NO 3 RR conditions, Cu 1 Co 1 -HDS undergoes in situ reconstruction, forming nanocomposites of homogeneously distributed metallic Cu 0 and Co(OH) 2 . Reconstruction-induced Cu 0 rapidly converts NO 3 − to NO 2 − , which is further hydrogenated to NH 3 by Co(OH) 2 . Homogeneously mixed Cu and Co species maximize this synergistic effect, achieving outstanding NO 3 RR performance including the highest NH 3 yield rate (4.625 mmol h −1 cm −2 ) reported for powder-type NO 3 RR catalysts. Integration of Cu 1 Co 1 -HDS with a commercial Si solar cell attained 4.53% solar-to-ammonia efficiency from industrial wastewater-level concentrations of NO 3 − (2000 ppm), demonstrating practical application potential for solar-driven NH 3 production. This study provides a strategy for enhancing the NH 3 yield rate by optimizing the compositions and distributions of Cu and Co.

show abstract

Homogeneously Mixed Cu–Co Bimetallic Catalyst Derived from Hydroxy Double Salt for Industrial-Level High-Rate Nitrate-to-Ammonia Electrosynthesis

Jang,

Oh,

Lee

et al. 2024

J. Am. Chem. Soc.

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show abstract

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Advancements and prospects of perovskite-based fuel electrodes in solid oxide cells for CO₂ electrolysis to CO

Abstract: Developments and prospects for solid oxide cells using a perovskite-based fuel electrode for CO2 electrolysis to CO.

Cited by 1 publication

References 177 publications

Homogeneously Mixed Cu–Co Bimetallic Catalyst Derived from Hydroxy Double Salt for Industrial-Level High-Rate Nitrate-to-Ammonia Electrosynthesis

Homogeneously Mixed Cu–Co Bimetallic Catalyst Derived from Hydroxy Double Salt for Industrial-Level High-Rate Nitrate-to-Ammonia Electrosynthesis

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Advancements and prospects of perovskite-based fuel electrodes in solid oxide cells for CO2 electrolysis to CO

Abstract: Developments and prospects for solid oxide cells using a perovskite-based fuel electrode for CO2 electrolysis to CO.

Cited by 1 publication

References 177 publications

Homogeneously Mixed Cu–Co Bimetallic Catalyst Derived from Hydroxy Double Salt for Industrial-Level High-Rate Nitrate-to-Ammonia Electrosynthesis

Homogeneously Mixed Cu–Co Bimetallic Catalyst Derived from Hydroxy Double Salt for Industrial-Level High-Rate Nitrate-to-Ammonia Electrosynthesis

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Advancements and prospects of perovskite-based fuel electrodes in solid oxide cells for CO₂ electrolysis to CO