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

Urea Electrosynthesis from Nitrate and CO2 on Diatomic Alloys DOI
Kai Chen, Danyang Ma, Ying Zhang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(30)

Published: June 14, 2024

Abstract Urea electrosynthesis from co–electrolysis of NO 3 − and CO 2 (UENC) offers a promising technology for achieving sustainable efficient urea production. Herein, diatomic alloy catalyst (CuPd 1 Rh –DAA), with mutually isolated Pd atoms alloyed on Cu substrate, is theoretically designed experimentally confirmed to be highly active selective UENC catalyst. Combining theoretical computations operando spectroscopic characterizations reveals the synergistic effect –Cu sites promote via tandem catalysis mechanism, where site triggers early C–N coupling promotes *CO –to–*CO NH steps, while facilitates subsequent protonation step *COOHNH toward formation. Impressively, CuPd –DAA assembled in flow cell presents highest Faradaic efficiency 72.1% yield rate 53.2 mmol h −1 g cat at −0.5 V versus RHE, representing nearly performance among all reported catalysts.

Language: Английский

Citations

91
Isolated Metal Centers Activate Small Molecule Electrooxidation: Mechanisms and Applications DOI Open Access
Yanmin Hu,

Tingting Chao,

Yuhai Dou

et al.

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

Published: Jan. 26, 2025

Abstract Electrochemical oxidation of small molecules shows great promise to substitute oxygen evolution reaction (OER) or hydrogen (HOR) enhance kinetics and reduce energy consumption, as well produce high‐valued chemicals serve fuels. For these reactions, high‐valence metal sites generated at oxidative potentials are typically considered active trigger the process molecules. Isolated atom site catalysts (IASCs) have been developed an ideal system precisely regulate state coordination environment single‐metal centers, thus optimize their catalytic property. The isolated in IASCs inherently possess a positive state, can be more readily homogeneous under than nanoparticle counterparts. Meanwhile, merely centers but lack ensemble sites, which alter adsorption configurations compared with counterparts, induce various pathways mechanisms change product selectivity. More importantly, construction is discovered limit d‐electron back donation CO 2p * orbital overly strong on resolve poisoning problems most electro‐oxidation reactions improve stability. Based advantages fields electrochemical molecules, this review summarizes recent developments advancements focusing anodic HOR fuel cells OER electrolytic alternative such formic acid/methanol/ethanol/glycerol/urea/5‐hydroxymethylfurfural (HMF) key reactions. merits different decoding structure–activity relationships specifically discussed guide precise design structural regulation from perspective comprehensive mechanism. Finally, future prospects challenges put forward, aiming motivate application possibilities for diverse functional IASCs.

Language: Английский

Citations

1
Single-Atom-Alloy Catalysts for Enhanced Hydrogenation Reaction Process: Mechanism, Regulation Strategy, and Design Principle DOI
Yuan Pan, Xin Zhang,

Guangxun Sun

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 3674 - 3698

Published: Feb. 14, 2025

Language: Английский

Citations

1
Metal–organic framework-derived single-atom catalysts for electrocatalytic energy conversion applications DOI
Mingjin Cui, Bo Xu, Xinwei Shi

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(30), P. 18921 - 18947

Published: Jan. 1, 2024

Single-atom catalysts (SACs) derived from metal–organic frameworks (MOFs) are revolutionizing electrocatalytic energy conversion.

Language: Английский

Citations

5
Radiocatalytic synthesis of acetic acid from CH4 and CO2 DOI

Bo‐Shuai Mu,

Yugang Zhang, Mi Peng

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(44)

Published: July 26, 2024

Abstract The C−C coupling of methane (CH 4 ) and carbon dioxide (CO 2 to generate acetic acid 3 COOH) represents a highly atom‐efficient chemical conversion, fostering the comprehensive utilization greenhouse gases. However, inherent thermodynamic stability kinetic inertness CH CO present obstacles achieving efficient selective conversion at room temperature. Our study reveals that hydroxyl radicals (⋅OH) hydrated electrons (e aq − produced by water radiolysis can effectively activate , yielding methyl (⋅CH radical anions(⋅CO facilitate production COOH ambient introduction radiation‐synthesized CuO‐anchored TiO bifunctional catalyst could further enhance reaction efficiency selectivity remarkably boosting radiation absorption stability, resulting in concentration 7.1 mmol ⋅ L −1 with near‐unity (>95 %). These findings offer valuable insights for design implementation radiation‐induced conversion.

Language: Английский

Citations

5
Isolated Tin Enhanced CO Coverage‐Regulation on Sn1Cu Alloy for Selective CO2 Electroreduction to C2+ Products DOI Open Access
Yijiang Liu,

Zongye Yue,

Cheng‐Hao Jin

et al.

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

Published: Jan. 15, 2025

Electricity-powered C─C coupling of CO2 represents an attractive strategy for producing valuable commodity chemicals with renewable energy, but it is still challenging to gain high C2+ selectivity at current density. Here, a Sn1Cu single-atom alloy (SAA) reported isolated Sn atom embedded into the Cu lattice, as efficient ectrocatalyst reduction. The prepared Sn1Cu-SAA catalyst shows maximal Faradaic efficiency 79.3% 800 mA cm-2, which can be kept stable least 16 h. combination in situ spectroscopy and DFT calculation reveal that introduced promote activation *CO, enhance CO coverage on Sn1Cu-SAA. As results, reaction barrier pathway significantly reduced, boosting generation products. These findings offer novel sight fabricating multicarbon products from via regulation concentration intermediates catalytic interface.

Language: Английский

Citations

0
The role of the morphological motifs in syngas product selectivity during CO2 photoreduction DOI
Hao Song,

Hangmin Xu,

Chuanzhou Bi

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159711 - 159711

Published: Jan. 1, 2025

Language: Английский

Citations

0
Gold Single Atom Doped Defective Nanoporous Copper Octahedrons for Electrocatalytic Reduction of Carbon Dioxide to Ethylene DOI
Yang Zhao, Yanan Wang, Zhipeng Yu

et al.

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

Published: Jan. 24, 2025

Electrocatalytic CO2 reduction into high-value multicarbon products offers a sustainable approach to closing the anthropogenic carbon cycle and contributing neutrality, particularly when renewable electricity is used power reaction. However, lack of efficient durable electrocatalysts with high selectivity for multicarbons severely hinders practical application this promising technology. Herein, nanoporous defective Au1Cu single-atom alloy (De-Au1Cu SAA) catalyst developed through facile low-temperature thermal in hydrogen subsequent dealloying process, which shows toward ethylene (C2H4), Faradaic efficiency 52% at current density 252 mA cm–2 under potential −1.1 V versus reversible electrode (RHE). In situ spectroscopy measurements functional theory (DFT) calculations reveal that C2H4 product results from synergistic effect between Au single atoms Cu sites on surface catalysts, where promote *CO generation defects stabilize key intermediate *OCCO, altogether enhances C–C coupling kinetics. This work provides important insights design electrochemical products.

Language: Английский

Citations

0
Catalysis in Sustainable Energy Resources: Overview Studies of Hydrogen, Methane, Biomass and Plastics DOI Creative Commons

Yuwen Ni,

Jingqing Tian, Zhe Han

et al.

Industrial Chemistry and Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Building a sustainable energy system is currently major challenge. In this review, we introduce catalysis of promising systems, aiming to draw attention development in energy.

Language: Английский

Citations

0
Galvanic replacement mediated morphological adjustments boost nanoparticle performance in electrocatalytic alcohol oxidation DOI

Dongze Ma,

Zhao Jin,

Jianfeng Jia

et al.

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The PdPtCo core-shell nanostructure, fabricated via galvanic replacement by rapidly incorporating Pd into PtCo nanoalloys at room temperature, excels in alcohol oxidation (AOR). Synergistic effects lower Pt electron density, promoting C-C cleavage, while increased Co coverage reduces COads adsorption, enhancing CO tolerance. This work offers a novel strategy for high-performance AOR catalysts.

Language: Английский

Citations

0