Tensile‐Strained Cu Penetration Electrode Boosts Asymmetric C–C Coupling for Ampere‐Level CO2‐to‐C2+ Reduction in Acid DOI
Shoujie Li, Gangfeng Wu, Jianing Mao

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(41)

Published: July 15, 2024

Abstract The synthesis of multicarbon (C 2+ ) products remains a substantial challenge in sustainable CO 2 electroreduction owing to the need for sufficient current density and faradaic efficiency alongside carbon efficiency. Herein, we demonstrate ampere‐level high‐efficiency C both neutral strongly acidic (pH=1) electrolytes using hierarchical Cu hollow‐fiber penetration electrode (HPE). High concentration K + could concurrently suppress hydrogen evolution reaction facilitate C−C coupling, thereby promoting production strong acid. By optimizing H flow rate, 84.5 % partial as high 3.1 A cm −2 products, single‐pass 81.5 stable electrolysis 240 h were demonstrated solution SO 4 KCl (pH=1). Experimental measurements functional theory simulations suggested that tensile‐strained HPE enhances asymmetric coupling steer selectivity activity products.

Language: Английский

In‐situ Reconstruction of Catalyst in Electrocatalysis DOI Creative Commons
Jinxian Feng, X.‐S. Wang, Hui Pan

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

Abstract Reconstruction of catalysts is now well recognized as a common phenomenon in electrocatalysis. As the reconstructed structure may promote or hamper electrochemical performance, how to achieve designed active surface for highly enhanced catalytic activity through reconstruction needs be carefully investigated. In this review, genesis and effects various processes, such hydrogen evolution reaction (HER), oxygen (OER), carbon dioxide reduction (CO 2 RR), nitrate (NO 3 RR) are first described. Then, strategies optimizing reconstruction, valence states control, phase retention, engineering, poisoning prevention comprehensively discussed. Finally, general rules optimization summarized give perspectives future study. It believed that review shall provide deep insights into electrocatalytic mechanisms guide design pre‐catalysts with improved activity.

Language: Английский

Citations

17
Electrochemical CO2RR to C2+ products: A vision of dynamic surfaces of Cu-based catalysts DOI
Jinxin Wang, Jiaqi Zhang, Chen Chen

et al.

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2025, Volume and Issue: 68, P. 83 - 102

Published: Jan. 1, 2025

Language: Английский

Citations

3
Stabilizing Cu-based catalyst for electrochemical CO2 reduction using incorporated Ni DOI
Jianping Li, Siyu Kuang,

Yaxin Jin

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160048 - 160048

Published: Jan. 1, 2025

Language: Английский

Citations

2
Hierarchical Tandem Catalysis Promotes CO Spillover and Trapping for Efficient CO2 Reduction to C2+ Products DOI
Lei Bian, Qiang Cai, Jiayi Chen

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

The electrochemical CO2 reduction reaction (CO2RR) to produce multicarbon (C2+) hydrocarbons or oxygenate compounds is a promising route obtain renewable fuel valuable chemicals; however, producing C2+ at high current densities still challenge. Herein, we design hierarchically structured tandem catalysis electrode for greatly improved catalytic activity and selectivity products. constructed of sputtered Ag nanoparticle layer on hydrophobic polytetrafluoroethylene (PTFE) membrane nitrogen-doped carbon (NC)-modified Cu nanowire arrays. arrays are in situ grown PTFE by oxidation CuAl alloy, which the chemical etching metal Al induces formation array structure. Within hierarchical configuration, CO can be efficiently generated an active then spillover transfer NC-modified layer, Cu/NC interfaces enhance *CO trapping adsorption. During CO2RR, optimized achieves superior Faradaic efficiencies 53.5% 87.5% ethylene (C2H4) products density 519.0 mA cm–2, respectively, with C2+/C1 ratio 10.42 long-term stability up 50 h. In Raman attenuated total reflection-surface enhanced infrared absorption spectroscopy (ATR-SEIRAS) confirm that Ag–Cu–NC system significantly enhances linear adsorption intermediates dissociation H2O, improves C–C coupling capability, stabilizes key intermediate *OCCOH

Language: Английский

Citations

2
Tensile‐Strained Cu Penetration Electrode Boosts Asymmetric C–C Coupling for Ampere‐Level CO2‐to‐C2+ Reduction in Acid DOI
Shoujie Li, Gangfeng Wu, Jianing Mao

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(41)

Published: July 15, 2024

The synthesis of multicarbon (C

Language: Английский

Citations

11
Targeted-tuning competitive acidic CO2RR via metalloid antagonism sites DOI

Beibei Sheng,

Dengfeng Cao,

Zheng‐Hang Qi

et al.

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

Published: Jan. 1, 2025

Citations

1
Electrolyte manipulation on Cu-based electrocatalysts for electrochemical CO2 reduction DOI

Hexin Zhou,

Wanlong Xi,

Peng Yang

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 99, P. 201 - 222

Published: Aug. 6, 2024

Language: Английский

Citations

8
Direct low concentration CO2 electroreduction to multicarbon products via rate-determining step tuning DOI Creative Commons

Liangyiqun Xie,

Yanming Cai, Yujing Jiang

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 29, 2024

Direct converting low concentration CO2 in industrial exhaust gases to high-value multi-carbon products via renewable-energy-powered electrochemical catalysis provides a sustainable strategy for utilization with minimized separation and purification capital energy cost. Nonetheless, the electrocatalytic conversion of dilute into value-added chemicals (C2+ products, e.g., ethylene) is frequently impeded by rate weak carbon intermediates' surface adsorption strength. Here, we fabricate range Cu catalysts comprising fine-tuned Cu(111)/Cu2O(111) interface boundary density crystal structures aimed at optimizing rate-determining step decreasing thermodynamic barriers adsorption. Utilizing engineering, attain Faradaic efficiency (51.9 ± 2.8) % partial current (34.5 6.4) mA·cm−2 C2+ feed condition (5% v/v), comparing state-of-art electrolysis. In contrast prevailing belief that activation ( $${{CO}}_{2}+{e}^{-}+\, * \,\to {}^{ }{CO}_{2}^{-}$$ ) governs reaction rate, discover that, under conditions, shifts generation *COOH $${}^{ } {{CO}}_{2}^{-}+{H}_{2}O\to {COOH}+{{OH}}^{-}({aq})$$ Cu0/Cu1+ boundary, resulting better production performance. The development operate resembling waste holds promise reduction. authors report vacuum calcination approach regulating on Cu-based can electro-catalyze low-concentration CO2.

Language: Английский

Citations

7
Advanced in situ characterization techniques for studying the dynamics of solid-liquid interface in electrocatalytic reactions DOI Creative Commons
Shiyu Li, Yan Jin, Xiaoxia Chen

et al.

Materials Today Catalysis, Journal Year: 2024, Volume and Issue: unknown, P. 100068 - 100068

Published: Oct. 1, 2024

Language: Английский

Citations

6
Trilayer Polymer Electrolytes Enable Carbon‐Efficient CO2 to Multicarbon Product Conversion in Alkaline Electrolyzers DOI
Jundong Wang, Yuesheng Zhang,

H Y Bai

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(37)

Published: June 21, 2024

The electrochemical CO

Language: Английский

Citations

4