Regulated Cu Diatomic Distance Promoting Carbon−Carbon Coupling During CO2 Electroreduction DOI

Hongxin Guan,

Yu-Xiang Zhang, Wenjun Fan

et al.

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

Published: Nov. 3, 2024

Abstract To address the bottle‐neck carbon‐carbon coupling issue during electrochemical carbon dioxide reduction (eCO 2 RR) to multicarbon (C 2+ ) products, this work develops an anion‐directed strategy (Cl − , NO 3 and SO 4 2− regulate interatomic distance of Cu diatoms. In comparison pristine (with a typical Cu‐Cu 2.53 Å), Cu‐boroimidazole frameworks (BIF)/SO Cl material shows elongated diatomic 3.90 Å, 4.21 3.30 respectively. Among them, Cu‐BIF/Cl exhibits outstanding eCO RR performance with Faradaic efficiency 72.12% for C products industrial‐level current density 539.0 mA cm −2 at −1.75 V versus RHE. Significantly, according theoretical in situ experimental investigation, highly electronegative ion lifts d‐band center sites Cu‐BIF/Cl, facilitating *CO adsorption low Gibbs free energy its later dimerization overcoming small barrier. addition, manipulate catalysts, can also be adaptable other reactions involving intermediate following Langmuir‐Hinshelwood mechanism, such as carbon‐nitrogen coupling, nitrogen‐nitrogen etc.

Language: Английский

Unraveling the enhanced urea selectivity in electroreduction of CO2 and nitrate over Bimetallic CuZn catalysts DOI
Bo Lv,

Jian Yu,

Fengchen Zhou

et al.

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 578, P. 114978 - 114978

Published: March 6, 2025

Language: Английский

Citations

1
Optimization of electronic structure by defect engineering for electrocatalytic carbon dioxide reduction reaction DOI
Jinghan He,

Jianbin Qiang,

Yangfan Xu

et al.

Inorganic Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This paper reviews the progress of defective Cu-based materials for eCO 2 RR, highlights design strategy defect structure and emphasizes mechanism site on catalytic behaviors.

Language: Английский

Citations

0
Electrochemical CO2 Reduction Technology Toward Practical Application: Status Quo and Challenges DOI

Ziye Cheng,

D. Lu,

Jiayi Chen

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(7)

Published: Feb. 1, 2025

Abstract Electrochemical CO 2 reduction (denoted as ECO R) technology is expected to transform greenhouse gas into a range of fuels and chemicals combined with renewable electricity. A wide fundamental research has been dedicated the clarification reaction mechanisms developing catalyst materials, which have significantly facilitated level R technology. Nevertheless, still encounters limitations such low utilization efficiency insufficient selectivity high‐value products. Addressing these challenges crucial for be implemented in practical applications. In an electrolysis system, electrolyzer represents core component system primary site. Therefore, composition structure will directly affect performance. This review begins by outlining recent progress at large‐scale level, followed comprehensive analysis industrial configuration, including detailed considerations electrode, diffusion layer, membrane electrolyzer. Finally, we elucidate remaining associated industrialization this offer suggestions advancing it.

Language: Английский

Citations

0
Development of catalysts and reactor designs for CO2 electroreduction towards C2+ products DOI Open Access

Joonhee Ma,

Soo Young Kim

Energy Materials, Journal Year: 2025, Volume and Issue: 5(5)

Published: Feb. 25, 2025

Recent research on the electrocatalytic CO2 reduction reaction (eCO2RR) has garnered significant attention given its capability to address environmental issues associated with emissions while harnessing clean energy produce high-value-added products. Compared C1 products, C2+ products provide greater densities and are highly sought after as chemical feedstocks. However, formation of C-C bond is challenging due competition H-H C-H bonds. Therefore, elevate selectivity yield fuels, it essential develop more advanced electrocatalysts optimize design electrochemical cell configurations. Of materials investigated for CO2RR, Cu-based stand out their wide availability, affordability, compatibility. Moreover, catalysts exhibit promising capabilities in adsorption activation, facilitating compounds via coupling. This review examines recent both cells electroreduction compounds, introducing core principles eCO2RR pathways involved generating A key focus categorization catalyst designs, including defect engineering, surface modification, nanostructure tandem catalysis. By analyzing studies catalysts, we aim elucidate mechanisms behind enhanced compounds. Additionally, various types electrolytic discussed. Lastly, prospects limitations utilizing highlighted future research.

Language: Английский

Citations

0
Cu-based Bimetallic Catalysts for Electrochemical CO2 Reduction: Before and Beyond the Tandem Effect DOI
Dan Luo,

Weidong Dai,

Keying Wu

et al.

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

Published: Jan. 1, 2025

Cu-based bimetallic catalysts show enhanced electrochemical CO 2 reduction performance via the tandem effect. This review traces their progress, highlighting design advances, mechanisms, and challenges to guide efficient conversion.

Language: Английский

Citations

0
Stabilized Triple-Phase Interface at CF4 Plasma Bombarded Cu Gas Diffusion Electrode for CO2-to-C2H4 Valorization DOI
Peng Shen, Zhen Ji, Ke Ye

et al.

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

Published: May 12, 2025

Cu-based gas diffusion electrodes (GDEs) hold the potential to produce carbon-neutral fuels and value-added chemicals from CO2 greenhouse at substantial current densities, yet they are challenged by sluggish reaction kinetics toward C2+ product production fierce competition of H2 evolution electrowetted/flooded catalyst layers. Herein, we develop a roughened hydrophobic Cu/PTFE GDE via CF4 plasma bombardment demonstrate its effectiveness in facilitating CO2-to-C2H4 valorization. Online electrochemical mass spectrometry reveals that enhanced C2H4 electrosynthesis is correlated with increased rates consumption CO utilization, as well reduction generation upon CFx modification. Molecular dynamics simulations highlight significant promotional effect electrolyte management sustaining high local [CO2]/[H2O] ratio near CFx-Cu surface, where improved C-C coupling attributable abundant Cuδ+ sites adjacent surface-bonded fluorocarbons electron-withdrawing character.

Language: Английский

Citations

0
Regulated Cu Diatomic Distance Promoting Carbon−Carbon Coupling During CO2 Electroreduction DOI

Hongxin Guan,

Yu-Xiang Zhang, Wenjun Fan

et al.

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

Published: Nov. 3, 2024

Abstract To address the bottle‐neck carbon‐carbon coupling issue during electrochemical carbon dioxide reduction (eCO 2 RR) to multicarbon (C 2+ ) products, this work develops an anion‐directed strategy (Cl − , NO 3 and SO 4 2− regulate interatomic distance of Cu diatoms. In comparison pristine (with a typical Cu‐Cu 2.53 Å), Cu‐boroimidazole frameworks (BIF)/SO Cl material shows elongated diatomic 3.90 Å, 4.21 3.30 respectively. Among them, Cu‐BIF/Cl exhibits outstanding eCO RR performance with Faradaic efficiency 72.12% for C products industrial‐level current density 539.0 mA cm −2 at −1.75 V versus RHE. Significantly, according theoretical in situ experimental investigation, highly electronegative ion lifts d‐band center sites Cu‐BIF/Cl, facilitating *CO adsorption low Gibbs free energy its later dimerization overcoming small barrier. addition, manipulate catalysts, can also be adaptable other reactions involving intermediate following Langmuir‐Hinshelwood mechanism, such as carbon‐nitrogen coupling, nitrogen‐nitrogen etc.

Language: Английский

Citations

1