Anodic Oxidation-Induced Interfacial Regulation of Nanoporous Co2P/CoOOH for Electrocatalytic Nitrate Reduction to Ammonia DOI

Xinghao Sun,

Yanqin Liang, Hui Jiang

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(19), С. 28256 - 28266

Опубликована: Апрель 30, 2025

The rechargeable Zn-nitrate battery presents a promising strategy for renewable energy conversion, ammonia production, and sewage treatment. Despite achieving excellent performance with transition metal-based electrocatalysts, the structure evolution of electrocatalyst during charging/discharging corresponding reaction mechanism on nitrate reduction (NO3RR) are still unclear. Inspired by structural reconstruction in charging process, nanoporous Co2P/CoOOH prepared dealloying anodic oxidation is reported as an NO3RR, remarkable catalytic (ammonia yield rate: 1.93 mmol h-1 cm-2, Faradaic efficiency: 94.18%) high cathodic efficiency 34.51%. Additionally, assembled delivers power density 31.99 mW cm-2 charge-discharge stability. In-situ spectroscopy investigation reveals generation Co2P/Co3O4 heterosturcture through synergetic redox involving cobalt species ions which enhances approach potassium-ionized water improves kinetics regulating NO2- *NH2 generation. Density functional theoretical calculation further illustrates that heterostructure optimizes adsorption *NO intermediate enables energetically favorable rate-limiting *NOH formation step. unique activation mode cobalt-based would provide new insights designing efficient electrocatalysts battery.

Язык: Английский

Halloysite-templated hydrophilic carbon tubes wrapped with FeNi3 for the acceleration of electrocatalytic nitrate reduction to ammonia DOI
Jizhou Duan, Pengfei Zhang, Xin Yan

и другие.

Fuel, Год журнала: 2025, Номер 392, С. 134896 - 134896

Опубликована: Март 3, 2025

Язык: Английский

Процитировано

0
Anodic Oxidation-Induced Interfacial Regulation of Nanoporous Co2P/CoOOH for Electrocatalytic Nitrate Reduction to Ammonia DOI

Xinghao Sun,

Yanqin Liang, Hui Jiang

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(19), С. 28256 - 28266

Опубликована: Апрель 30, 2025

The rechargeable Zn-nitrate battery presents a promising strategy for renewable energy conversion, ammonia production, and sewage treatment. Despite achieving excellent performance with transition metal-based electrocatalysts, the structure evolution of electrocatalyst during charging/discharging corresponding reaction mechanism on nitrate reduction (NO3RR) are still unclear. Inspired by structural reconstruction in charging process, nanoporous Co2P/CoOOH prepared dealloying anodic oxidation is reported as an NO3RR, remarkable catalytic (ammonia yield rate: 1.93 mmol h-1 cm-2, Faradaic efficiency: 94.18%) high cathodic efficiency 34.51%. Additionally, assembled delivers power density 31.99 mW cm-2 charge-discharge stability. In-situ spectroscopy investigation reveals generation Co2P/Co3O4 heterosturcture through synergetic redox involving cobalt species ions which enhances approach potassium-ionized water improves kinetics regulating NO2- *NH2 generation. Density functional theoretical calculation further illustrates that heterostructure optimizes adsorption *NO intermediate enables energetically favorable rate-limiting *NOH formation step. unique activation mode cobalt-based would provide new insights designing efficient electrocatalysts battery.

Язык: Английский

Процитировано

0