Engineering Flow‐Through Hollow Fiber Gas‐Diffusion Electrodes for Unlocking High‐Rate Gas‐Phase Electrochemical Conversion DOI Creative Commons
Guoliang Chen, Hesamoddin Rabiee, Mengran Li

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Designing advanced electrodes with efficient contact gas, electrolytes, and catalysts presents significant opportunities to enhance the accessibility of concentrated gas molecules catalytic sites while mitigating undesirable side reactions such as hydrogen evolution reaction (HER), which advances gas‐phase electrochemical reduction toward industrial‐scale applications. Traditional planar face challenges, including limited solubility restricted mass transport. Although commercial flow‐by gas‐diffusion can reduce transfer resistance by enabling direct diffusion active sites, reliance on diffusive flow becomes insufficient meet rapid consumption demands reactants at high current density. Flow‐through hollow fiber (HFGDEs) or penetration (HFGPEs) provide a promising solution continuously delivering convective resulting in enhanced transport superior near sites. Notably, HFGDEs have demonstrated ability achieve densities exceeding multiple amperes per square centimeter liquid electrolytes. This review provides comprehensive overview design criteria, fabrication methods, strategies for porous metallic HFGDEs. It highlights state‐of‐the‐art advancements composed various metals (e.g., Cu, Ni, Ag, Bi, Ti, Zn), particular focus their utilization conversion CO 2 . Finally, future research directions are discussed, underscoring potential versatile scalable electrode architecture diverse

Language: Английский

Modulating the Electronic Properties of Single Ni Atom Catalyst via First‐Shell Coordination Engineering to Boost Electrocatalytic Flue Gas CO2 Reduction DOI Open Access
Zhiyuan Wang, Zhen Chen, Xin Du

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Abstract Electrochemical converting CO 2 to via single atom catalyst is an effective strategy for reducing concentration in the atmosphere and achieving a carbon‐neutral cycle. However, relatively low industrial processes large energy barriers activating severely obstruct actual application. Reasonably modulating coordination shell of active center enhance activity catalysts. Herein, well‐designed single‐atom electrocatalyst Ni‐N 3 S 1 developed large‐scale synthesis strategy. The constructed S‐C exhibits superior catalytic than 4 ‐C conversion H‐type cells, industrial‐level current density with excellent durability at wide pH range can be achieved gas‐diffusion flow cells. Experimental results functional theory (DFT) calculation demonstrate that introducing electronegative significantly regulate electronic structure site, promoting adsorption capacity decreasing barrier *COOH formation, thus larger size flexibility sulfur mitigate nickel agglomeration stability catalyst. This work provides designing highly catalysts electrocatalysis reactive sites.

Language: Английский

Citations

2
Breaking symmetry for better catalysis: insights into single-atom catalyst design DOI
Peng Cao,

Xueqin Mu,

Fanjiao Chen

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review examines the strategies of symmetry breaking (charge/coordination/geometric) in single-atom catalysts to regulate active site electronic structures, greatly enhancing catalytic performance.

Language: Английский

Citations

1
Integrated Electrochemical Biomass Oxidation and CO2 Reduction over Ultra‐wide Potential Window DOI Open Access
Chenbao Lu,

Sen Yang,

Pengfei Shi

et al.

Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Abstract Electrochemical reduction of carbon dioxide (CO 2 ) coupled with biomass oxidation using renewable electricity is considered as a promising strategy for management. However, achieving both high selectivity and large current density over wide potential window remains significant challenge, hindering practical applications. In this study, Ni/Fe dual metal‐atom catalyst developed CO reduction, nearly 100 % across an ultra‐wide 1.6 V, surpassing state‐of‐the‐art catalysts. Remarkably, maintained above 98 even after hours continuous operation at industrial 200 mA cm −2 , demonstrating excellent long‐term stability. When integrated into solar electricity‐driven 5‐hydroxymethylfurfural system, Faradaic efficiency 90 2,5‐furandicarboxylic acid yield are simultaneously obtained. Theoretical calculations reveal that the rate‐limiting step reaction varies applied potential, synergistic interaction between Ni Fe atoms effectively lowers limiting energy barrier. This work offers valuable insights strategic design synthesis catalysts activity window, providing versatile platform coupling diverse anodic reactions sources.

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
Integrated Electrochemical Biomass Oxidation and CO2 Reduction over Ultra‐wide Potential Window DOI Open Access
Chenbao Lu,

Sen Yang,

Pengfei Shi

et al.

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Electrochemical reduction of carbon dioxide (CO2) coupled with biomass oxidation using renewable electricity is considered as a promising strategy for management. However, achieving both high selectivity and large current density over wide potential window remains significant challenge, hindering practical applications. In this study, Ni/Fe dual metal-atom catalyst developed CO2 reduction, nearly 100 % CO across an ultra-wide 1.6 V, surpassing state-of-the-art catalysts. Remarkably, maintained above 98 even after hours continuous operation at industrial 200 mA cm-2, demonstrating excellent long-term stability. When integrated into solar electricity-driven 5-hydroxymethylfurfural system, Faradaic efficiency 90 2,5-furandicarboxylic acid yield are simultaneously obtained. Theoretical calculations reveal that the rate-limiting step reaction varies applied potential, synergistic interaction between Ni Fe atoms effectively lowers limiting energy barrier. This work offers valuable insights strategic design synthesis catalysts activity window, providing versatile platform coupling diverse anodic reactions sources.

Language: Английский

Citations

0
Engineering Flow‐Through Hollow Fiber Gas‐Diffusion Electrodes for Unlocking High‐Rate Gas‐Phase Electrochemical Conversion DOI Creative Commons
Guoliang Chen, Hesamoddin Rabiee, Mengran Li

et al.

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Designing advanced electrodes with efficient contact gas, electrolytes, and catalysts presents significant opportunities to enhance the accessibility of concentrated gas molecules catalytic sites while mitigating undesirable side reactions such as hydrogen evolution reaction (HER), which advances gas‐phase electrochemical reduction toward industrial‐scale applications. Traditional planar face challenges, including limited solubility restricted mass transport. Although commercial flow‐by gas‐diffusion can reduce transfer resistance by enabling direct diffusion active sites, reliance on diffusive flow becomes insufficient meet rapid consumption demands reactants at high current density. Flow‐through hollow fiber (HFGDEs) or penetration (HFGPEs) provide a promising solution continuously delivering convective resulting in enhanced transport superior near sites. Notably, HFGDEs have demonstrated ability achieve densities exceeding multiple amperes per square centimeter liquid electrolytes. This review provides comprehensive overview design criteria, fabrication methods, strategies for porous metallic HFGDEs. It highlights state‐of‐the‐art advancements composed various metals (e.g., Cu, Ni, Ag, Bi, Ti, Zn), particular focus their utilization conversion CO 2 . Finally, future research directions are discussed, underscoring potential versatile scalable electrode architecture diverse

Language: Английский

Citations

0