Dissecting Key Factors Influencing Electrochemical Conversion of Carbon Solutions over Nickel Single Atoms DOI Open Access
Feng Li, Naiyu Wang,

Ye‐Bin Zou

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Abstract The direct electrochemical conversion of bicarbonate solutions (i.e., captured CO 2 ) has emerged as a sustainable approach for integrating capture and utilization compared to the traditional independent sequential route. However, process is poorly understood, impeding development this new technology. Here, study explores critical factors influencing solution over Ni single‐atom catalysts, including catalyst structure, carbon source, electrolysis temperature, electrolyzer type. with better exposure sites smaller charge transfer resistance exhibits higher activity both gaseous solutions. In situ Raman spectroscopy DFT calculations reveal that follows two‐step pathway, is, dissociation generate followed by reduction form sites. Increasing temperature promotes HCO 3 − boosts production. More interestingly, switching Ar/CO atmosphere affects efficiency production in H‐cell but no influence membrane electrode assembly cell. Such phenomenon attributed different sources. This work sheds light on various establishes connection between .

Language: Английский

Dissecting Key Factors Influencing Electrochemical Conversion of Carbon Solutions over Nickel Single Atoms DOI Open Access
Feng Li, Naiyu Wang,

Ye‐Bin Zou

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Abstract The direct electrochemical conversion of bicarbonate solutions (i.e., captured CO 2 ) has emerged as a sustainable approach for integrating capture and utilization compared to the traditional independent sequential route. However, process is poorly understood, impeding development this new technology. Here, study explores critical factors influencing solution over Ni single‐atom catalysts, including catalyst structure, carbon source, electrolysis temperature, electrolyzer type. with better exposure sites smaller charge transfer resistance exhibits higher activity both gaseous solutions. In situ Raman spectroscopy DFT calculations reveal that follows two‐step pathway, is, dissociation generate followed by reduction form sites. Increasing temperature promotes HCO 3 − boosts production. More interestingly, switching Ar/CO atmosphere affects efficiency production in H‐cell but no influence membrane electrode assembly cell. Such phenomenon attributed different sources. This work sheds light on various establishes connection between .

Language: Английский

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