Copper-Modified Bismuth Nanofilm

Photoelectrocatalytic CO₂ to formate

Transition metal modification introduces new active sites, boosts electron transport and photocorrosion resistance, overcoming the bottlenecks of poor conductivity and high overpotential of Bi-based nanofilms.

Yiming, Wang · Jiuyang, Li · Juan, Jia · Jiaqi, Wang · Zhang, Changming · Zhang, Yao · Bai, Yadong · Guo, Tianyu · Zhang, Xiaochao

Journal of Environmental Chemical Engineering 2026

Specifications

Formate Faradaic efficiency

{'zh': '92.19', 'en': '92.19'} %

Stability duration

{'zh': '12', 'en': '12'} h

Advantages

Over 92% efficiency

Transition metal modification creates new active sites (Bi-O-M and M-O) that promote CO₂ reduction to formate.

Stable for 12 h

Catalytic activity remains steady over 12 h of continuous reaction due to improved resistance to photocorrosion.

Better conductivity

Transition metal modification boosts electron transport capabilities, overcoming the poor conductivity of Bi nanofilms.

Applications

• Electrocatalytic CO₂ reduction：Provide highly efficient and stable electrodes with high formate selectivity.
• Photoelectrocatalysis：Enhance catalytic activity through photo-electro coupling and reduce overpotential.
• Carbon capture and utilization：Convert CO₂ into value-added formate for carbon utilization.
• Catalytic materials：Construct new active sites via transition metal modification to boost catalytic performance.