Amine-Functionalized Copper Catalysts: Hydrogen Bonding Mediated Electrochemical CO<sub>2</sub> Reduction to C<sub>2</sub> Products and Superior Rechargeable Zn-CO<sub>2</sub> Battery Performance DOI Open Access
Dong Xiang,

Kunzhen Li,

Kanghua Miao

et al.

Acta Physico-Chimica Sinica, Journal Year: 2023, Volume and Issue: 0(0), P. 2308027 - 2308027

Published: Jan. 1, 2023

The electrochemical carbon dioxide reduction reaction (eCO2RR) can convert CO2 into valuable chemicals, achieving a cycle.Copper-based catalysts have demonstrated unique ability to produce C2+ products in eCO2RR, which is often limited by the scaling relationship of intermediates, complex mechanism and competitive H2 evolution.Organic functionalization promising strategy for regulating activity selectivity eCO2RR toward products.However, behind such regulation especially at molecular level, remains elusive.In this study, Cu nanoparticles were prepared functionalized with set amine derivatives, including hexadecylamine (HDA), N-methylhexadecylamine (N-MHDA), hexadecyldimethylamine (HDDMA), palmitamide (PMM).The impact structure surfactants on was systematically explored through both experiments theoretical calculations.X-ray photoelectron spectroscopy density functional theory calculations revealed that HDA catalyst surface resulted negative charge transfer from molecules Cu. ECO2RR examined 1.0 mol•L -1 KOH aqueous electrolyte.HDA achieved highest Faradaic efficiency (FE) 73.5% C2 46.4% C2H4, respectively.It also provided partial current 131.4 mA•cm -2 -0.9 V vs. reversible hydrogen electrode (RHE) among these derivatives catalysts.In contrast, FE pristine only 27.0% 50.5 , respectively.Theoretical studies bonding interactions intermediates enriched CO2, CO, other lowered kinetic energy barrier CO-CHO coupling thereby promoted products.Replacing H atoms group methyl groups N-MHDA HDDMA dominant evolution (HER) eCO2RR.PMM Cu-O bond, instead Cu-N as HDA, HDDMA, preferred ethanol production.In situ Raman indicated CO adsorption atop sites HDA-capped catalysts, bridge site clean surfaces, possibly due former case.HDA increased local pH relative catalysts.The Cu-HDA-based rechargeable Zn-CO2 battery exhibited superior maximum power 6.48 mW•cm discharge 16 remarkable durability 60 h, outperforming most reported literature.This work enhances CO2-C2 conversion tuning Cu-based materials, unravels provides new insights promoting organic molecules.

Language: Английский

Benchmarking ionomers for CO2 electroreduction to multicarbon products in zero-gap electrolyzers DOI
Fanxin Zeng,

Huiying Deng,

Mengjiao Zhuansun

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(32), P. 20990 - 20998

Published: Jan. 1, 2024

This work benchmarks ionomers for CO 2 electroreduction to multicarbon products. Ionomers with stronger hydrophobicity or having bulkier and less hydrated ionised side chains were found favour *CO adsorption product formation.

Language: Английский

Citations

5
Femtosecond laser-enabled facile tuning of Cu selectivity towards long-chain products in CO2 electroreduction DOI Creative Commons
Asghar Ali, Sobin Mathew, Shahbaz Ahmad

et al.

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 85, P. 102880 - 102880

Published: July 1, 2024

In the quest to mitigate excessive CO2 emissions, electrochemical reduction of (eCO2R) into multi-carbon fuels and vital chemical precursors emerges as a compelling strategy. Meticulous control C–C coupling on catalyst surface is grand challenge in selective production desired C2+ products. Ethane propanol are among most desirable products gas liquid phase, respectively. Herein, we demonstrate facile femtosecond laser-enabled tuning Cu selectivity towards ethane propanol. The tailoring induces shift from C1 This product composition attributed concurrent creation hierarchical porous structures, stabilization {111}, {200}, {220} Cu2O facets, promotion Cu1+ oxidation state. These alterations collectively enhance adsorption strength, leading an increased propensity for C-C and, consequently, elevated toward

Language: Английский

Citations

5
Improved catalytic performance of CO2 electrochemical reduction reaction towards ethanol on chlorine-modified Cu-based electrocatalyst DOI
Yifan Liu,

Hehua Tang,

Yitian Zhou

et al.

Nano Research, Journal Year: 2023, Volume and Issue: 17(5), P. 3761 - 3768

Published: Dec. 5, 2023

Language: Английский

Citations

11
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
Oxygen coordinated Cu single atom catalysts: a superior catalyst towards electrochemical CO2 reduction for methane production DOI Open Access

Jundi Qin,

Xiao Hu,

Kanghua Miao

et al.

Microstructures, Journal Year: 2025, Volume and Issue: 5(2)

Published: Feb. 25, 2025

Single atom catalyst (SAC) show significant promise in electrocatalytic carbon dioxide reduction reaction (eCO2RR) to produce valuable chemicals, representing one of the most promising ways achieve a neutral cycle. Methane is many products from eCO2RR. Rational design SAC through deliberate coordination regulation and controlled synthesis at low temperatures toward methane production remains very limited. Herein this paper, Cu with four oxygen atoms (Cu-O4) were prepared by soaking nanocrystals on support acetic acid solution 60 °C for 12 h. The structure was revealed extended X-ray absorption fine spectrum photoelectron spectroscopy. Cu-O4 demonstrates excellent activity selectivity towards production, Faradaic efficiency (FE) 63.0% partial current density 200.5 mA cm-2. Theoretical calculation indicates less positive charge center stronger delocalization than Cu-N4 due π bonding interaction SAC, which stabilizes intermediates lowers potential determining step SAC. Strong hydrogen adsorption suppresses evolution may favor hydrogenation methane. limiting that more favored CO, methanol formate, corroborating high This work highlights importance environment steering

Language: Английский

Citations

0
Modulating *CO adsorption configuration over the CuPd/Cu interfaces to improve C-C coupling for enhanced acetate production DOI
Wei Wei,

Zhenyao Li,

Jitao Shang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: 371, P. 125220 - 125220

Published: March 3, 2025

Language: Английский

Citations

0
CuMoRuFeW high entropy alloy surfaced nanorods: superior electrochemical CO2 reduction to ethylene DOI

Jundi Qin,

Dan Hu,

Dong Xiang

et al.

Chinese Journal of Structural Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 100571 - 100571

Published: March 1, 2025

Language: Английский

Citations

0
Enhancing the selectivity of CO2-to-HCOOH conversion by constructing tensile-strained Cu catalyst DOI
Zhe Wang, Zijian Li, Shangguo Liu

et al.

Materials Today Physics, Journal Year: 2023, Volume and Issue: 38, P. 101247 - 101247

Published: Oct. 6, 2023

Language: Английский

Citations

9
CO2 laser-induced porous carbon attached Bi2O3 as highly efficient catalyst for CO2 electroreduction to formate DOI
Shipeng Zhang, Xiaoshan Wang,

Dewen Song

et al.

Carbon, Journal Year: 2024, Volume and Issue: 228, P. 119385 - 119385

Published: June 24, 2024

Language: Английский

Citations

2
A copper coordination polymer precatalyst with asymmetric building units for selective CO2-to-C2H4electrolysis DOI

Chun Fang Wen,

Min Zhou,

Xuefeng Wu

et al.

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(23), P. 12121 - 12129

Published: Jan. 1, 2023

A Cu-BTC-CP precatalyst with asymmetric building units, which in situ reconstructs to low-coordinated Cu during the CO 2 RR, delivers an ethylene faradaic efficiency of 65.2 ± 3% at 350 mA cm −2 a flow cell.

Language: Английский

Citations

5