Optimization Strategies for Electrocatalytic CO2 Reduction Based on Atomically Dispersed Copper: A Review DOI
Yuan Li, Bin Guan, Zhongqi Zhuang

et al.

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

Published: Dec. 26, 2024

Abstract The electroreduction reaction of CO 2 (eCO RR) is considered an effective pathway for clean fuel production, greenhouse gas reduction, and resource recycling. Atomically dispersed catalysts exhibit excellent catalytic activity due to the high dispersion atoms, especially atomically copper (AD Cu). Although copper‐based materials are major single component capable producing multi‐carbon products, mechanism usually not very clear. For AD Cu catalysts, dynamic transformation species in form (nano)clusters, ions during process significantly has effect on performance eCO RR. core issue that needs be addressed how control tune aggregation atoms make it most favorable desired product or pathways. This review summarizes optimization strategies recent years from three main perspectives: interface engineering, electrode external field coupling.

Language: Английский

Destabilization of Single‐Atom Catalysts: Characterization, Mechanisms, and Regeneration Strategies DOI Open Access

Zhiquan Lang,

Xixi Wang,

Sobia Jabeen

et al.

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

Published: Jan. 19, 2025

Abstract Numerous in situ characterization studies have focused on revealing the catalytic mechanisms of single‐atom catalysts (SACs), providing a theoretical basis for their rational design. Although research is relatively limited, stability SACs under long‐term operating conditions equally important and prerequisite real‐world energy applications, such as fuel cells water electrolyzers. Recently, there has been rise destabilization regeneration SACs; however, timely comprehensive summaries that provide catalysis community with valuable insights directions are still lacking. This review summarizes recent advances strategies SACs, specifically highlighting various state‐of‐the‐art techniques employed studies. The factors induce identified by discussing failure active sites, coordination environments, supports, reaction scenarios. Next, primary introduced, including redispersion, surface poison desorption, exposure subsurface sites. Additionally, advantages limitations both ex discussed. Finally, future proposed, aimed at constructing structure–stability relationships guiding design more stable SACs.

Language: Английский

Citations

4
High-selectivity electroreduction of low-concentration CO2 with large concentration fluctuation DOI

M. Qi,

Yanbin Ma,

Chao Zhang

et al.

Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Language: Английский

Citations

1
Semi‐Confinement Effect Enhances CH4 and C2H4 Production in CO2 Electrocatalytic Reduction DOI Open Access
Jiahao Song, Hanlei Sun, Licheng Liu

et al.

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

Published: Jan. 21, 2025

Abstract Achieving fast conversion and precise regulation of product selectivity in electrochemical CO 2 reduction reaction (CO RR) remains a challenge. The space confinement effect provides theoretical basis for the design catalysts different morphology sizes reveals physical phenomena caused by electrons other particles at nanoscale. In this work, semi‐confinement concept is introduced mesoporous silica nanosphere supported Cu catalyst (Cu‐MSN) prepared as typical example to realize RR enhancement (methane vs ethylene). semi‐confined structure partially solves mass transfer problem classical confined catalysis. Cu‐MSN allows flexible controls aggregation form species loading amount, which achieves free switch from methane Faraday efficiency 71.1% ethylene 66.4%. Various characterizations confirm that adsorption behavior local coordination transformation (from Cu─O─Si Cu─O─Cu), can stabilize key intermediates * CHO COH generating respective ethylene.

Language: Английский

Citations

1
Experimental and Theoretical Insights into Single Atoms, Dual Atoms, and Sub‐Nanocluster Catalysts for Electrochemical CO2 Reduction (CO2RR) to High‐Value Products DOI Creative Commons
Abebe Reda Woldu, Asfaw G. Yohannes, Zanling Huang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(52)

Published: Nov. 26, 2024

Abstract Electrocatalytic carbon dioxide (CO 2 ) conversion into valuable chemicals paves the way for realization of recycling. Downsizing catalysts to single‐atom (SACs), dual‐atom (DACs), and sub‐nanocluster (SNCCs) has generated highly active selective CO transformation reduced products. This is due introduction numerous sites, unsaturated coordination environments, efficient atom utilization, confinement effect compared their nanoparticle counterparts. Herein, recent Cu‐based SACs are first reviewed newly emerged DACs SNCCs expanding catalysis electrocatalytic reduction RR) high‐value products discussed. Tandem SAC–nanocatalysts (NCs) (SAC–NCs) also discussed RR Then, non‐Cu‐based SACs, DACs, SAC–NCs, theoretical calculations various transition‐metal summarized. Compared previous achievements less‐reduced products, this review focuses on double objective achieving full increasing selectivity formation rate toward C–C coupled with additional emphasis stability catalysts. Finally, through combined experimental research, future outlooks offered further develop over isolated atoms sub‐nanometal clusters.

Language: Английский

Citations

6
High-Entropy Ultrathin Amorphous Metal–Organic Framework-Stabilized Ru(Mo) Dual-Atom Sites for Water Oxidation DOI

Xueqin Mu,

Min Yu, Xingyu Liu

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 5763 - 5770

Published: Nov. 6, 2024

High-entropy metal–organic frameworks (HE-MOFs) offer immense potential in electrocatalysis due to their diverse metallic compositions and high densities of active sites. Integrating bimetallic single-atom catalysts (SACs) with HE-MOFs for enhanced oxygen evolution reaction (OER) performance remains challenging. Here, we stabilize atomically dispersed Ru Mo amorphous HE-MOF nanosheets (HE(Ru,Mo)-MOFs) via situ-formed high-entropy oxides, elucidating the deprotonation mechanism. Evidence supports presence high-density O-bridged dual-atom The multimetallic composition induces electronic redistribution balances oxidation state metal sites, enhancing intrinsic OER activity. HE(Ru,Mo)-MOFs exhibit low overpotentials 267 mV@10 mA cm–2 266 alkaline freshwater industrial wastewater, respectively, exceptional durability surpassing that commercial RuO2 catalysts. Mechanistic insights reveal atomic dispersion facilitates rapid charge transfer intermediate transformation, promising advanced energy conversion.

Language: Английский

Citations

5
Theoretical prediction of metal-doped high C/N-ratio C N3 (x=7, 10, 13, 19) as single-atom catalysts for CO2RR DOI

Haoyang Qiu,

Huohai Yang,

Qigang Chen

et al.

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 573, P. 114808 - 114808

Published: Jan. 11, 2025

Language: Английский

Citations

0
Sn/nitrogen-doped carbon composites with enhanced CO2 electroreduction toward formate DOI
Xiaohui Zhong, Tingting Yang, Qingqing Zhang

et al.

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: 59, P. 105990 - 105990

Published: Feb. 1, 2025

Language: Английский

Citations

0
Progress in Cu‐Based Catalyst Design for Sustained Electrocatalytic CO2 to C2+ Conversion DOI Creative Commons
Dan Li, Jin‐Yuan Liu, Bin Wang

et al.

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

Published: Feb. 27, 2025

Abstract The electrocatalytic conversion of CO 2 into valuable multi‐carbon (C 2+ ) products using Cu‐based catalysts has attracted significant attention. This review provides a comprehensive overview recent advances in catalyst design to improve C selectivity and operational stability. It begins with an analysis the fundamental reaction pathways for formation, encompassing both established emerging mechanisms, which offer critical insights design. In situ techniques, essential validating these by real‐time observation intermediates material evolution, are also introduced. A key focus this is placed on how enhance through manipulation, particularly emphasizing catalytic site construction promote C─C coupling via increasing * coverage optimizing protonation. Additionally, challenge maintaining activity under conditions discussed, highlighting reduction active charged Cu species materials reconstruction as major obstacles. To address these, describes strategies preserve sites control including novel utilization mitigation reconstruction. By presenting developments challenges ahead, aims guide future conversion.

Language: Английский

Citations

0
Atomic-level engineering Ni-N2O2 interfacial structure for enhanced CO2 electrocatalytic reduction efficiency DOI
Bowen Dai,

Minxuan Wang,

Hui Xu

et al.

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 690, P. 137260 - 137260

Published: March 7, 2025

Language: Английский

Citations

0
Synergistic effect of Cu and Fe on chitosan-glutamic acid hydrogel for green synthesis of N doped carbon with CuFe dual atomic clusters for Zn-air batteries DOI
Jin Wang, Yefei Chen, Wei Cheng

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161938 - 161938

Published: March 1, 2025

Language: Английский

Citations

0