Regulating the Microenvironment of Zn‐Based Metal‐Organic Framework for Enhanced CO2 Electroreduction to Formate DOI

Tingting Zhan,

Jiali Huang, Ying Yang

et al.

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

Published: Nov. 12, 2024

Abstract Electrocatalytic CO 2 reduction (ECR) has emerged as one of the most promising strategies to alleviate energy crisis and pollution, for which a wide variety catalysts are under development. Metal‐organic frameworks (MOFs) with clear designable structures an excellent platform ECR. In this study, two isostructural N, O‐coordinated Zn‐MOFs, FJU‐126‐4F, FJU‐126‐CH 3 , based on terephthalic acid ligand different groups (one is ─4F other ─CH ) benzene ring, have been constructed ECR catalysts. Significantly, functional make performance difference The maximum Faraday efficiency formate (FE FJU‐126‐4F 60.5% partial current density ( j −19.35 mA cm −2 at −1.47 V, while optimum FE 50.2% −10.04 −1.57 V. This work provides insight into rational design MOF

Language: Английский

Atomically Dispersed Ga Synergy Lewis Acid‐Base Pairs in F‐doped Mesoporous Cu2O for Efficient Eletroreduction of CO2 to C2+ Products DOI
Jiahao Wang,

Qinyuan Ji,

Hu Zang

et al.

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

Published: April 22, 2024

Abstract Electroreduction of CO 2 into high‐value chemicals and fuels driven is an effective way to alleviate the environmental crisis, but it suffers from poor activity low selectivity catalyst. Single‐atom catalysts have excellent highest atomic efficiency, are widely used in 2‐electron transfer produce CO. However, electroreduction C 2+ products involves complex processes such as multi‐electron reaction competitive adsorption, so single‐atom catalysis often powerless. Herein, a Ga‐anchored F‐doped Cu O catalyst with dual active sites reported. The Lewis acid‐base pairs Ga single atom promote adsorption/activation dissociation water molecules, respectively, enhance coverage *CO *H, their synergy optimizes path. At high current density 600 mA cm −2 , FE C2+ reached 72.8 ± 3.2% remarkable stability. Experiments theory calculations demonstrate that increase key intermediate transformed *CHO through protonation reaction, which changes path C─C coupling (*OCCO) followed by (*OCCHO) energy barrier, greatly improving for products.

Language: Английский

Citations

22
Hydrophobic carbon quantum dots with Lewis-Basic nitrogen sites for electrocatalyst CO2 reduction to CH4 DOI
Shuai Fu, Bijun Tang, Zeming Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157207 - 157207

Published: Oct. 1, 2024

Language: Английский

Citations

18
Atomically precise metal nanoclusters combine with MXene towards solar CO2 conversion DOI Creative Commons

Yu-Shan Cai,

Jiaqi Chen, Peng Su

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(33), P. 13495 - 13505

Published: Jan. 1, 2024

Atomically precise metal nanoclusters (NCs) have been deemed a new generation of photosensitizers for light harvesting on account their quantum confinement effect, peculiar atom-stacking mode, and enriched catalytic active sites. Nonetheless, to date, charge modulation over NCs has still challenging considering ultra-short carrier lifetime poor stability. In this work, we conceptually demonstrate the integration with MXene in transition chalcogenide (TMC) photosystems

Language: Английский

Citations

15
Catalyst design for the electrochemical reduction of carbon dioxide: from copper nanoparticles to copper single atoms DOI Open Access
Qianwen Li, Jingjing Jiang, Shanshan Jiang

et al.

Microstructures, Journal Year: 2025, Volume and Issue: 5(1)

Published: Jan. 17, 2025

Carbon dioxide reduction reaction (CO2RR) is an efficacious method to mitigate carbon emissions and simultaneously convert CO2 into high-value products. The efficiency of CO2RR depends on the development highly active selective catalysts. Copper (Cu)-based catalysts can effectively reduce hydrocarbons oxygen-containing compounds because their unique geometric electronic structures. Most importantly, Cu multiple products (C2+). Therefore, this review aims outline recent research progress in Cu-based for CO2RR. After introducing mechanism electroreduction reaction, we summarize influence size, morphology, coordination environment single component performance, especially performance control that contain nano or single-atom sites. Then, synergistic regulation strategies doping other metals are summarized. Finally, supports used reviewed. prospects challenges discussed.

Language: Английский

Citations

1
Bypassing gas-liquid mass transfer resistance in a Fenton wet scrubber for boosting the removal of hydrophobic styrene: Construction of a novel gas-solid-liquid triple-phase interface DOI

Zhiru Suo,

Yuan Zhuang, Yanjun Zhao

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160166 - 160166

Published: Feb. 1, 2025

Language: Английский

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
CO2 Electroreduction to Long‐Chain Hydrocarbons on Cobalt Catalysts DOI Creative Commons
Phil Preikschas, Jie Zhang, Ranga Rohit Seemakurthi

et al.

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

Published: Sept. 24, 2024

Abstract Renewable‐powered electrocatalytic CO 2 conversion to long‐chain hydrocarbons represents a sustainable path produce chemicals and fuels. However, recently discovered systems still lack C–C coupling capabilities required yield longer, more valuable carbon chains. This study reports cobalt catalysts with focus on Co 3 O 4 ‐derived material for the selective of C 1 –C 7 hydrocarbons, following an Anderson–Schulz–Flory distribution. The obtained chain growth probability ( α ) 0.54 substantially exceeds that any other known electrocatalyst, which ranged from 0.2 0.4. Detailed in situ characterization simulations indicated Co‐Co interfaces, formed during electrolysis, are active sites promote enhanced growth. To prevent overreduction causes deactivation these interfacial sites, electrode is exposed intermittent short reoxidation cycles electrolysis. Consequently, catalyst regained its oxidic phase ability form hydrocarbons. Overall, this opens new frontiers one‐step into multi‐carbon products suggests exploration metal–metal oxide interfaces as promising strategy further progress.

Language: Английский

Citations

5
Progress of CO2 Electrochemical Methanation Using a Membrane Electrode Assembly DOI
Shofu Matsuda, Masatoshi Osawa, Minoru Umeda

et al.

Electrocatalysis, Journal Year: 2024, Volume and Issue: 15(4), P. 318 - 328

Published: May 25, 2024

Language: Английский

Citations

4
Catalyst Ink Preparation Matters for Electrocatalytic Carbon Dioxide Reduction DOI Creative Commons
Miao Wang, Junmei Chen, Bihao Hu

et al.

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

Published: Jan. 20, 2025

Abstract Electrocatalytic CO 2 reduction (CO R) offers a promising pathway for closing the carbon cycle. Metallic Cu‐based catalysts are only materials capable of converting to C 2+ products with significant selectivity and activity. Achieving industrially relevant current densities in R requires use gas diffusion electrodes (GDEs), making structure properties catalyst layer (CL) on GDEs critical performance Cu catalysts. However, limited research has explored how ink composition affects CL features and, consequently, under operating conditions. In this study, we investigate influence morphology, these affect performance. We find that water content modifies active site density, thickness, porosity CL, as well state Nafion binder, thereby altering microenvironment sites during R, including local concentration pH. Our results reveal strong correlation between structural characteristics CL. Specifically, optimizing ethanol‐to‐water ratio enhances product density 75 % 450 mA cm −2 , respectively. This approach provides simple yet effective strategy improve activity practical

Language: Английский

Citations

0
Electrocatalytic CO2 Reduction to C2 Products via Enhanced C─C Coupling Over Cu‐based Catalysts: Dynamic Reaction and Regulation Mechanism DOI
Meidan Que, Bin Wang, Yawei Yang

et al.

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

Published: April 10, 2025

Abstract Benefiting from the optimal interaction strength between Cu and reactants, Cu‐based catalysts exhibit a unique capability of facilitating formation various multi‐carbon products in electricity‐driven CO 2 reduction reactions (CO ERR). Nonetheless, ERR process on these is characterized by intricate polyproton‐electron transfer mechanisms that are frequently hindered high energy barriers, sluggish reaction kinetics, low C─C coupling efficiency. This review employs advanced characterization techniques, such as sum frequency generation technology, to provide comprehensive analysis mechanism surface, examining it both spatial temporal dimensions proposing spatial‐temporal mechanism. To improve efficiency, series regulatory strategies focused surface microenvironment, catalyst structure, internal electronic thereby offering novel insights for upcoming design enhancement electrocatalysts.

Language: Английский

Citations

0