Copper/Cobalt-Loaded Carbon Nanostructures as Catalysts for Electrochemical CO2 Reduction DOI

Zhaoxing Wu,

Zhengxiong Wu,

Yulai Zhao

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(9), P. 10479 - 10489

Published: April 25, 2024

The electrochemical reduction of CO2 to produce high-value multicarbon products represents a challenging yet highly desirable process, particularly due the inefficient C–C coupling observed in current electrocatalysts. In this study, Cu2+ and Co2+ were introduced into ZIF-8 as precursors synthesize series Co- CuCo-doped carbon nanostructure materials with varying Co-to-Cu ratios. X-ray diffraction photoelectron spectroscopy (XPS) analyses confirmed successful doping metal Co form Co–Nx, while Cu was partly doped nanoparticles attached substrate surface single atoms forming Cu–Nx. Transmission electron microscopy energy-dispersive revealed uniform distribution elemental on substrate, loaded nanocluster surface. Linear sweep voltammetry tests indicated that Cu/CoCu-Nx-C composites exhibited enhanced reactivity toward compared other samples. At −0.19 V (vs RHE), Faradaic efficiencies (FEs %) C2H4, C2H6, CH4, CO, H2 over 29.7, 8.6, 20.2, 9.8, 31.5%, respectively. influence modes selectivity electrocatalytic investigated. Results showed higher FE C2 Cu/Cu–Nx-C, nearly 10 times density. Mechanistic insights from acid-etching experiments XPS synergistic interaction between metallic Cu, promoting generation products. Co–Nx improved *CO coverage, facilitating subsequent neighboring Additionally, CH4 production attributed (111) crystalline facets isolated Overall, research provides an important understanding creation straightforward effective catalysts for CO2. It holds considerable potential hydrocarbons using dioxide.

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

92
Advances and challenges in the electrochemical reduction of carbon dioxide DOI Creative Commons

Jingyi Han,

Xue Bai,

Xiaoqin Xu

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(21), P. 7870 - 7907

Published: Jan. 1, 2024

This review highlights the structure–activity relationship of ECO 2 RR, provides a detailed summary advanced materials by analyzing electrocatalytic applications and reaction mechanisms, discusses challenges in both devices.

Language: Английский

Citations

48
Stabilizing the oxidation state of catalysts for effective electrochemical carbon dioxide conversion DOI

Zhitong Wang,

Lizhi Xu, Yansong Zhou

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(12), P. 6295 - 6321

Published: Jan. 1, 2024

Developing sophisticated strategies to stabilize oxidative metal catalysts based on the correlation between dynamic oxidation state and product profile is favorable for efficient electrochemical CO 2 conversion.

Language: Английский

Citations

34
Twin Heterostructure Engineering and Facet Effect Boosts Efficient Reduction CO2-to-Ethanol at Low Potential on Cu2O@Cu2S Catalysts DOI
Jing Li,

Rong Cai,

Haiqiang Mu

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(5), P. 3266 - 3277

Published: Feb. 15, 2024

Copper oxide (Cu2O) is considered a promising catalyst that can effectively reduce the overpotential of CO2 reduction reaction (CO2 RR) and increase selectivity for C2+ products. However, developing high-performance stable CO2-to-ethanol (C2H5OH) based-Cu2O electrocatalysts remains challenging. In this work, Cu2O@Cu2S twin heterojunction catalysts with multitwin boundaries are designed to afford C2H5OH productivity at low potential through electrocatalytic RR, highly dependent on facet nanocubes outperforming octahedra. Detailed electrochemical experiments, density functional theory (DFT) calculations in situ infrared spectroscopy reveals introduction Cu2S boosts high coverage *CO, which easily spillover generate *CHOH_*CO coupling pathway. A production begins an ultralow −0.45 V vs RHE reaches 34 43.9% Faradaic efficiencies (FE) −0.65 H-cell flow cell, respectively. Meanwhile, constructed interface coherent structure suitable band facilitate electron transfer from Cu2O Cu2S, leading stability Cu+ valence states. This work provides avenue precisely design by regulating configuration.

Language: Английский

Citations

28
Addressing the Carbonate Issue: Electrocatalysts for Acidic CO2 Reduction Reaction DOI Creative Commons
Weixing Wu, Liangpang Xu, Qian Lü

et al.

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

Published: May 9, 2024

Abstract Electrochemical CO 2 reduction reaction (CO RR) powered by renewable energy provides a promising route to conversion and utilization. However, the widely used neutral/alkaline electrolyte consumes large amount of produce (bi)carbonate byproducts, leading significant challenges at device level, thereby impeding further deployment this reaction. Conducting RR in acidic electrolytes offers solution address “carbonate issue”; however, it presents inherent difficulties due competitive hydrogen evolution reaction, necessitating concerted efforts toward advanced catalyst electrode designs achieve high selectivity activity. This review encompasses recent developments RR, from mechanism elucidation design engineering. begins discussing mechanistic understanding pathway, laying foundation for RR. Subsequently, an in‐depth analysis advancements catalysts is provided, highlighting heterogeneous catalysts, surface immobilized molecular enhancement. Furthermore, progress made device‐level applications summarized, aiming develop high‐performance systems. Finally, existing future directions are outlined, emphasizing need improved selectivity, activity, stability, scalability.

Language: Английский

Citations

21
Reactive capture and electrochemical conversion of CO2 with ionic liquids and deep eutectic solvents DOI Creative Commons
Saudagar Dongare, Muhammad Zeeshan,

Ahmet Safa Aydogdu

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(17), P. 8563 - 8631

Published: Jan. 1, 2024

Ionic liquids (ILs) and deep eutectic solvents (DESs) have tremendous potential for reactive capture of CO 2 , due to their highly properties, including a wide electrochemical stability window, low volatility, high solubility.

Language: Английский

Citations

21
Enigma of Sustainable CO2 Conversion to Renewable Fuels and Chemicals Through Photocatalysis, Electrocatalysis, and Photoelectrocatalysis: Design Strategies and Atomic Level Insights DOI Open Access

Diksha Suri,

Srimanta Das,

Shivani Choudhary

et al.

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

Published: Jan. 2, 2025

Growing global population, escalating energy consumption, and climate change threaten future security. Fossil fuel combustion, primarily coal, oil, natural gas, exacerbates the greenhouse effect driving warming through CO

Language: Английский

Citations

2
Metal‐Organic Frameworks‐Based Copper Catalysts for CO2 Electroreduction Toward Multicarbon Products DOI Creative Commons
Qin Chen,

Xuheng Li,

Ting Wang

et al.

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

Published: Feb. 12, 2025

ABSTRACT Copper (Cu) is the most promising catalyst for electrochemical CO 2 ‐to‐C 2+ conversion, whereas performance remains below practical thresholds due to high energy barrier of C−C coupling and lack effective approaches steer reaction pathway. Recent advances show that metal‐organic frameworks (MOF) could be a platform as support, pre‐catalyst, co‐catalyst modify electronic structure local environment Cu catalysts promoting reduction by virtue their great tunability over compositions pore architectures. In this review, we discussed general design principles, catalytic mechanisms, achievements MOF‐based catalysts, aiming boost refinement steering pathway C products. The fundamentals challenges are first introduced. Then, summarized conceptions from three aspects: engineering properties Cu, regulating environment, managing site exposure mass transport. Further, latest progress products namely Cu‐based MOF, MOF‐derived Cu@MOF hybrid discussed. Finally, future research opportunities strategies suggested innovate rational advanced electrifying transformation.

Language: Английский

Citations

2
Optimizing C─C Coupling on Cu0/Cu+/Ga Interfaces by Enhancing Active Hydrogen Absorption for Excellent CO2‐to‐C2+ Electrosynthesis DOI Open Access
Xiaoning Qi, Yikai Yang,

Y. C. Lan

et al.

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

Published: March 5, 2025

The electrocatalytic reduction of CO2 (CO2RR) to high-value chemicals and fuels offers a promising route for clean carbon cycle. However, it often suffers from low catalytic activity poor selectivity. Heterostructure construction has been shown be an effective strategy producing multi-carbon products, but the synergistic mechanisms between multiple active sites resulting reconstruction process remain unclear. In this study, Ga2O3/CuO heterostructure is established via simple sol-gel method produce C2+ products. Experimental results demonstrate that Ga2O3 stabilizes Cu+ form Cu0/Cu+/Ga centers enhances water-splitting ability during reaction. improved hydrogen absorption on Ga site shifts C─C coupling reaction pathway *OCCO asymmetric *OCCHO path with lower energy barrier. As result, catalysts exhibit superior CO2RR performance, achieving 70.1% Faradaic efficiency at -1.2 VRHE in flow cell, ethylene reaching 58.3% remaining stable 10 h.

Language: Английский

Citations

2
Atomically Dispersed Cu on In2O3 for Relay Electrocatalytic Conversion of Nitrate and CO2 to Urea DOI
Ying Zhang, Zhuohang Li,

Chaofan Qiang

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(36), P. 25316 - 25324

Published: Aug. 26, 2024

Urea electrosynthesis from coelectrolysis of NO

Language: Английский

Citations

16