Electrodeposition of Bismuth Dendrites on Oxide-Derived Copper Foam Enhancing Electrochemical CO2 Reduction to Formate DOI Open Access

Jialin Xu,

Li Lv, Chunlai Wang

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(1), P. 52 - 52

Published: Jan. 8, 2025

The electrochemical CO2 reduction reaction (CO2RR) to formate offers a promising pathway mitigate the energy crisis and realize carbon neutrality. Bismuth (Bi), as metal catalyst for CO2RR, is considered have great potential in producing formate, yet hindered low current density selectivity. Herein, we constructed an oxide-derived copper foam substrate (OD-Cu) improve electrocatalytic properties of Bi dendrites loaded on its surface. electrodeposited OD-Cu (Bi/OD-Cu) grows pinecone-like dendrites, exhibiting high faradaic efficiency (FEformate) 97.2% partial ~24 mA·cm−2 at −0.97 V vs. RHE (reversible hydrogen electrode) H-cell. Notably, Bi/OD-Cu electrode demonstrates FEformate 95.8% total close 90 −1.17 neutral flow cell. experimental studies reveal that remarkable CO2RR performance results from electron transfer Cu Bi, which optimizes adsorption CO2•− boosts kinetics. This study emphasizes crucial role engineering strategies enhancing catalytic activity shows possibility porous advancing industrialization production.

Language: Английский

Surface Area‐Enhanced Cerium and Sulfur‐Modified Hierarchical Bismuth Oxide Nanosheets for Electrochemical Carbon Dioxide Reduction to Formate DOI

Naveenkumar Palanimuthu,

Mohan Raj Subramaniam,

Muthu Austeria P

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: June 7, 2024

Abstract Electrochemical carbon dioxide reduction reaction (ECO 2 RR) is a promising approach to synthesize fuels and value‐added chemical feedstocks while reducing atmospheric CO levels. Here, high surface area cerium sulfur‐doped hierarchical bismuth oxide nanosheets (Ce@S‐Bi O 3 ) are develpoed by solvothermal method. The resulting Ce@S‐Bi electrocatalyst shows maximum formate Faradaic efficiency (FE) of 92.5% current density 42.09 mA cm −2 at −1.16 V versus RHE using traditional H‐cell system. Furthermore, three‐chamber gas diffusion electrode (GDE) reactor, FE 85% achieved in wide range applied potentials (−0.86 −1.36 vs RHE) . functional theory (DFT) results show that doping Ce S Bi enhances production weakening the OH* H* species. Moreover, DFT calculations reveal *OCHO dominant pathway on leads efficient production. This study opens up new avenues for designing metal element‐doped electrocatalysts improve catalytic activity selectivity ECO RR.

Language: Английский

Citations

5
Steering Geometric Reconstruction of Bismuth with Accelerated Dynamics for CO2 Electroreduction DOI
Xiaowen Wang, Yangyang Zhang,

Shao Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(34)

Published: June 5, 2024

Bismuth-based materials have emerged as promising catalysts in the electrocatalytic reduction of CO

Language: Английский

Citations

4
Unassisted photoelectrochemical CO2 reduction by employing III–V photoelectrode with 15% solar‐to‐fuel efficiency DOI Creative Commons
Karthik Peramaiya, Purushothaman Varadhan, Vinoth Ramalingam

et al.

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 6, 2025

Abstract Solar‐driven carbon dioxide reduction reaction (CO 2 RR) provides an opportunity to produce value‐added chemical feedstocks and fuels. However, achieving efficient stable photoelectrochemical (PEC) CO RR into selective products is challenging owing the difficulties associated with optical electrical configuration of PEC devices electrocatalyst properties. Herein, we construct efficient, concentrated sunlight‐driven setup consisting InGaP/GaAs/Ge triple‐junction cell as a photoanode oxide‐derived Au (Ox‐Au) cathode perform unassisted RR. Under one‐sun illumination, maximum operating current density 11.5 mA cm –2 impressive Faradaic efficiency (FE) ~98% achieved for monoxide (CO) production, leading solar‐to‐fuel conversion ~15%. intensity 10 sun, records ~124 maintains ~60% FE production. The results demonstrate crucial advancements in using III–V based photoanodes

Language: Английский

Citations

0
Asymmetric Coordination Engineering of Tin Single‐Atom Catalysts Toward CO2 Electroreduction: the Crucial Role of Charge Capacity in Selectivity DOI Open Access
Juan Zhang, Yu Wang, Yafei Li

et al.

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

Published: Jan. 6, 2025

Electrochemical reduction of CO

Language: Английский

Citations

0
Electrodeposition of Bismuth Dendrites on Oxide-Derived Copper Foam Enhancing Electrochemical CO2 Reduction to Formate DOI Open Access

Jialin Xu,

Li Lv, Chunlai Wang

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(1), P. 52 - 52

Published: Jan. 8, 2025

The electrochemical CO2 reduction reaction (CO2RR) to formate offers a promising pathway mitigate the energy crisis and realize carbon neutrality. Bismuth (Bi), as metal catalyst for CO2RR, is considered have great potential in producing formate, yet hindered low current density selectivity. Herein, we constructed an oxide-derived copper foam substrate (OD-Cu) improve electrocatalytic properties of Bi dendrites loaded on its surface. electrodeposited OD-Cu (Bi/OD-Cu) grows pinecone-like dendrites, exhibiting high faradaic efficiency (FEformate) 97.2% partial ~24 mA·cm−2 at −0.97 V vs. RHE (reversible hydrogen electrode) H-cell. Notably, Bi/OD-Cu electrode demonstrates FEformate 95.8% total close 90 −1.17 neutral flow cell. experimental studies reveal that remarkable CO2RR performance results from electron transfer Cu Bi, which optimizes adsorption CO2•− boosts kinetics. This study emphasizes crucial role engineering strategies enhancing catalytic activity shows possibility porous advancing industrialization production.

Language: Английский

Citations

0