Mechanistic investigation on Ag-Cu2O in electrocatalytic CO2 to CH4 by in situ/operando spectroscopic and theoretical analysis

Sun, Min; Zhang, Luxiao; Tian, Fuli; Li, Jiaxin; Lei, Yanqiu; Zhang, Heng; Han, Lifeng; Guo, Zhihua; Gao, Yonghui; Liu, Fenrong; Wang, Yan; Wang, Luhui; Zeng, Shanghong

doi:10.1016/j.jechem.2023.10.004

Cited by 4 publications

References 62 publications

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Methanol‐Facilitated Surface Reconstruction Catalysts for Near 200% Faradaic Efficiency in a Coupled System

Xia,

Jin,

Huang

et al. 2024

Adv Funct Materials

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The coupling of the carbon dioxide reduction reaction (CO2RR) and methanol oxidation reaction (MOR) holds great promise for the energy‐efficient production of HCOO−. However, anode catalysts' limited selectivity (<80%) and stability (<15 h) have impeded electron utilization and HCOO− production rates. To overcome it, copper‐copper(I) oxide‐copper(II) oxide nanowires (Cu─CuO─Cu2O NWs) catalysts have been developed, which exhibit exceptional performance in promoting the MOR with a faradic efficiency of nearly 100% at commercially viable current densities, and long stability over 100 h at 100 mA cm−2. Interestingly, the unique structure of the catalysts, when exposed to methanol, facilitates a transition from Cu/CuO to Cu2O. This phenomenon promotes the MOR while inhibiting the competitive oxygen evolution reaction (OER). By coupling the anodic reaction with cathodic CO2 reduction, the system demonstrates exceptional performance in HCOO− production, achieving an overall faradic efficiency of nearly 200% at 100 mA cm−2 with a low cell voltage of 2.382 V. Techno‐economic analysis indicates that the production costs of HCOOH are ≈US$0.37 and 0.35 kg−1 at 100 and 150 mA cm−2, respectively, significantly lower than those associated with traditional electrochemical methods.

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Methanol‐Facilitated Surface Reconstruction Catalysts for Near 200% Faradaic Efficiency in a Coupled System

Xia,

Jin,

Huang

et al. 2024

Adv Funct Materials

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Boosting hydrocarbon conversion via Cu-doping induced oxygen vacancies on CeO2 in CO2 electroreduction

Xue,

Shi,

Han

et al. 2025

Journal of Energy Chemistry

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Nanosheet assembled microspheres of metal (Zn, Ni, and Cu) indium sulfides for highly selective CO₂ electroreduction to methane

Ray,

Dahal,

Ashie

et al. 2024

Catal. Sci. Technol.

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Mechanistic investigation on Ag-Cu2O in electrocatalytic CO2 to CH4 by in situ/operando spectroscopic and theoretical analysis

Cited by 4 publications

References 62 publications

Methanol‐Facilitated Surface Reconstruction Catalysts for Near 200% Faradaic Efficiency in a Coupled System

Methanol‐Facilitated Surface Reconstruction Catalysts for Near 200% Faradaic Efficiency in a Coupled System

Boosting hydrocarbon conversion via Cu-doping induced oxygen vacancies on CeO2 in CO2 electroreduction

Nanosheet assembled microspheres of metal (Zn, Ni, and Cu) indium sulfides for highly selective CO₂ electroreduction to methane

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Mechanistic investigation on Ag-Cu2O in electrocatalytic CO2 to CH4 by in situ/operando spectroscopic and theoretical analysis

Cited by 4 publications

References 62 publications

Methanol‐Facilitated Surface Reconstruction Catalysts for Near 200% Faradaic Efficiency in a Coupled System

Methanol‐Facilitated Surface Reconstruction Catalysts for Near 200% Faradaic Efficiency in a Coupled System

Boosting hydrocarbon conversion via Cu-doping induced oxygen vacancies on CeO2 in CO2 electroreduction

Nanosheet assembled microspheres of metal (Zn, Ni, and Cu) indium sulfides for highly selective CO2 electroreduction to methane

Contact Info

Product

Resources

About

Nanosheet assembled microspheres of metal (Zn, Ni, and Cu) indium sulfides for highly selective CO₂ electroreduction to methane