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Article
Chemistry, Multidisciplinary
Saurav Ch Sarma et al.
Summary: The electrochemical CO2 reduction reaction (CO2RR) to value-added chemicals with renewable electricity is a promising method to decarbonize parts of the chemical industry. Single metal atoms in nitrogen-doped carbon (MNC) have emerged as potential electrocatalysts for CO2RR to CO with high activity and faradaic efficiency. The comparison of intrinsic activity of different MNCs reveals the synthesis approach of high temperature pyrolysis and low temperature metalation results in highly meso-porous structures, leading to the highest reported electrochemical active site utilization. The catalysts show promising performance for CO reduction to CO2 and their binding to reaction intermediates approximates to that of Au surfaces.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Pengfei Hou et al.
Summary: As the energy crisis and global warming worsen, the electrochemical reduction of carbon dioxide (CO2RR) using single-atom catalysts (SAC) is a potential solution to convert CO2 into valuable products. This paper investigates the catalytic performances of 28 TM@SxNy SACs towards C1 products. The results show that Cu@S3N1 exhibits the highest catalytic performance towards CO, CH3OH, and CH4, while Fe@S1N3 shows the best activity and selectivity towards HCOOH. Electronic structure analysis reveals the catalytic mechanism of Cu@S3N1 SAC towards CO product.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Maohuai Wang et al.
Summary: In this study, 26 transition metal anchored pyrrole nitrogen doped carbon catalysts (TM-NCs) were proposed as high-performance single atom catalysts (SACs) for CO2 reduction reaction (CO2RR). Results showed that 23 out of the 26 TM-NCs possessed superior stability and 11 TM-NCs exhibited preferred CO2RR selectivity. The optimized catalyst Cr/Mn/Co-NCs showed outstanding performance in CO2RR to formic acid with low limiting potentials and high throughput for CH4 production.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Hefeng Yuan et al.
Summary: Formate is an important organic raw chemical produced in the process of CO2 electroreduction. In this study, copper sulfide precursors with different initial morphologies were found to undergo significant microstructure reconstruction during the electrochemical CO2 reduction process. The optimal S-Cu2O-14 catalyst transformed into a nanoporous structure composed of nanoparticles, achieving an excellent faradaic efficiency of 67.2% and partial current density of 16.3 mA cm-2 at -1.0 V vs. RHE for formate. The S-Cu2O-14 catalyst exhibited high selectivity and stability, maintaining an average selectivity of 66.1% for formate for at least 20 hours at the same potential due to its large electrochemical surface area and resultant nanoporous topography.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
Yuting Liu et al.
Summary: In this study, Cu/Cu2O(X) catalysts (where X = I, Br, Cl) were reconstructed via cyclic voltammetry on carbon paper for selective electroreduction of CO2 to produce multicarbon products (C2+). The Cu/Cu2O(Cl), Cu/Cu2O(Br), and Cu/Cu2O(I) catalysts achieved Faradaic efficiencies (FE) of 31%, 34%, and 58%, respectively, for C2+ (C2H4, C2H5OH, C3H8OH) production at a potential of -0.76 V vs. the reversible hydrogen electrode (RHE). The Cu+ and Cu0 species obtained from the reconstruction of Cu/CuX are primarily responsible for the high C2+ producing activity.
ELECTROCHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Saira Ajmal et al.
Summary: This review discusses the application of single-atom catalysts (SACs) in CO2 reduction. The fabrication methods, characterization technologies, and reaction mechanism pathway of CO2 reduction on SACs are first described. Furthermore, recent developments in microenvironment modulation of SACs are thoroughly summarized to enhance the CO2 reduction activity and selectivity. Future directions for CO2 reduction on SACs and similar techniques are highlighted, addressing the persistent challenges of SACs and emerging microenvironment engineering.
Article
Chemistry, Multidisciplinary
Ruian Du et al.
Summary: Efficient electrocatalytic CO2 reduction to C2+ products can be achieved by modulating the surface and interfacial structures of Cu catalysts and the solid-gas-liquid interfaces on gas-diffusion electrodes in CO2 reduction flow cells. In this study, a CuO nanosheet/graphene oxide dots hybrid was used for in situ electrochemical reduction, leading to high selectivity (up to 77.4% for C2+ hydrocarbons) with the presence of abundant Cu+ species and Cu-0/Cu+ interfaces. The improved adsorption and surface coverage of *CO on the Cu catalyst facilitated C-C coupling reactions.
Article
Multidisciplinary Sciences
Jin Zhang et al.
Summary: In this study, the authors demonstrate that asymmetric CO binding at confined nanointerfaces can enhance CO2 electroreduction to multi-carbon products. Through alloying strategies, neighbouring binary sites enable improved CO2 utilization and C-C coupling efficiency in acid conditions. These findings offer a potential approach for long-term storage of renewable electricity in valuable multi-carbon chemicals.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Xinyi Ren et al.
Summary: Deciphering the reaction mechanisms of CO/CO2 electroreduction to methanol remains challenging. Here the authors report the higher electron density of single-Co-atom center, along with a different adsorption configuration of *CO, is crucial for promoting the CO electroreduction to methanol.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Rafae''l E. Vos et al.
Summary: Copper is an effective catalyst for electrochemical CO2 reduction reaction (CO2RR) and can produce multi-carbon products. The effect of reaction temperature on product distribution and activity of CO2RR on copper is investigated in this study. Two distinct temperature regimes are observed: from 18 to 48 degrees C, C2+ products with higher Faradaic efficiency are produced, while methane and formic acid selectivity decrease and hydrogen selectivity remains constant. From 48 to 70 degrees C, hydrogen evolution reaction dominates and the activity of CO2RR decreases. CO and HCOOH are the main products in this higher temperature range. The lower-temperature regime is influenced by CO surface coverage, local pH, and kinetics, while the second regime is likely related to structural changes in the copper surface.
Article
Chemistry, Physical
Georg Kastlunger et al.
Summary: The electrochemical reduction of CO2 holds great promise for closing the industrial carbon cycle and producing high-value chemicals and fuels using renewable electricity. However, current CO2 electrolyzers still struggle with poor selectivity towards desired products like ethylene and ethanol. In this study, microkinetic simulations based on constant-potential density functional theory are used to understand the reaction pathways for CO2 electroreduction on Cu(100) and identify the factors influencing selectivity. The study provides valuable insights for improving the design and performance of CO2 electrolyzers.
Article
Chemistry, Physical
Yujie Shi et al.
Summary: Researchers fabricated ultra-small SnO2/Cu6Sn5/CuO nanocatalysts with superscalar phase boundaries by laser sputtering. The introduction of SnO2 enhances the adsorption and activation of CO2, while CuO promotes H2O decomposition and provides abundant *H intermediates, resulting in efficient CO2RR and high selectivity to formic acid. In situ infrared spectroscopy and kinetic isotope effects experiments confirmed the role of multiphase boundaries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Yanbin Zhu et al.
Summary: This study presents a new SnCuxO2+x nanocluster electrocatalyst encapsulated in siliceous MFI zeolites (SnCuxO2+x@MFI) for efficient CO2 reduction to methane. The catalyst exhibits good selectivity and high Faradaic efficiency in alkaline electrolyte. Using this catalyst as the cathode in a Li-CO2 battery achieves high discharge specific capacity and long operational life.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chen Han et al.
Summary: The initial exposed facets of Cu2O microcrystals have a direct influence on their structural transformation and product selectivity. The low-index facet tends to maintain its original structure and results in the production of 2-electron transfer products, while the high-index facet undergoes a drastic reconstruction, leading to the formation of C2+ products. This study is of great significance for the preparation and modification of catalyst materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Kun Qi et al.
Summary: A supersaturation strategy was employed to electrosynthesize 2-propanol from CO2 using highly carbonated electrolytes. The CuAg alloy catalyst exhibited high performance for 2-propanol production with a faradaic efficiency of 56.7% and at a specific current density of 59.3 mA cm(-2).
Review
Energy & Fuels
Rohit Chauhan et al.
Summary: This Review explores the methods for green ethylene production, focusing on the transition from conventional to electrified processes. It highlights the importance of the global ethylene industry and the need for carbon-negative and sustainable approaches. The performance attributes of different reactors, their challenges, and an economic analysis are discussed.
Article
Chemistry, Multidisciplinary
Wei Xia et al.
Summary: Electrochemical CO2 reduction reaction (CO2RR) using renewable electricity is a promising strategy for achieving carbon neutrality. Cu-based catalysts generally have limited selectivity and current density towards ethanol, but a silica-mediated hydrogen-bonded organic framework (HOF)-templated approach can produce ultrahigh-density Cu single-atom catalysts (SACs) that show outstanding performance for electrochemical CO2RR to ethanol.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Dong Gyu Park et al.
Summary: In this study, a high-selectivity and stable catalyst for the electrochemical carbon dioxide reduction reaction (CO2RR) to produce C2+ hydrocarbons was achieved by utilizing oxygen-plasma-assisted nitrogen doping on CuO. Nitrogen doping created defects suitable for CO2RR, while oxygen plasma maintained the oxidation state of Cu. The nitrogen-doped CuO catalyst exhibited a high C2+ product selectivity of 77% (including 56% C2H4) and stable performance for 22 hours.
Review
Chemistry, Multidisciplinary
Xianyun Peng et al.
Summary: Electrochemical C-N coupling reactions using abundant small molecules like CO2 and N-2 have emerged as a green synthetic strategy for synthesizing organonitrogen compounds. This study provides a comprehensive review of the electrosynthesis of high value-added organonitrogens from CO2 and nitrogenous small molecules through C-N coupling reaction. The review discusses fundamental concepts, theoretical models, emerging electrocatalysts, and value-added target products, as well as current challenges and future opportunities. This critical review enhances understanding of electrochemical C-N coupling reactions and stimulates research interest in carbon and nitrogen fixation.
CHEMICAL SOCIETY REVIEWS
(2023)
Review
Chemistry, Multidisciplinary
Ziyang Zhang et al.
Summary: This paper systematically discusses the effects of surface and interface structures in Cu-based catalysts for the electrochemical CO2 reduction to valuable ethylene and ethanol. The key steps for ethylene production are C-C coupling, which can be enhanced by tuning the surface structures of the catalyst, and for ethanol production, it is the controllable hydrodeoxygenation of C-2 intermediates, which can be achieved by tuning the stability of oxygenate intermediates through the metallic cluster induced special atomic configuration and bimetallic synergy induced the double active sites on the catalyst surface. The structure-performance relationships provide guidance for the design of Cu-based catalysts for highly efficient reduction of CO2.
Article
Chemistry, Multidisciplinary
Xiaoxu Xuan et al.
Summary: Low-dimensional metal-organic frameworks (LD MOFs) with ultrathin structures, fully exposed active sites, and tunable compositions have shown excellent catalytic performance in CO2 catalytic reduction. This review summarizes various synthetic methods for preparing LD MOFs and introduces their unique properties and applications in CO2 catalytic reduction.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Multidisciplinary
Jianfang Zhang et al.
Summary: An ultrasonication-assisted electrodeposition strategy was used to synthesize CuO nanosheets for low-overpotential CO2 electroreduction to C2H4. The CuO nanosheets exhibited high Faradaic efficiency and cathodic energy efficiency at low overpotentials.
Article
Chemistry, Multidisciplinary
Min Zheng et al.
Summary: Ampere-level CO2-to-C2+ electrolysis is achieved by heteroatom engineering on Cu catalysts, which demonstrates high CO2-to-C2+ productivity and Faradaic efficiency under a large current density.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Multidisciplinary Sciences
Yu Zhang et al.
Summary: Tandem electrocatalysis is an effective approach for CO2 conversion to multicarbon products. However, the mass-transport limitation of CO hampers high-rate production of C2+ products. In this study, a CuO/Ni single atoms tandem catalyst was designed, enabling in-situ generation and rapid consumption of CO, leading to high partial current density and excellent selectivities for C2+ products.
Article
Engineering, Environmental
Yang Gang et al.
Summary: Metal-nitrogen doped carbon catalysts for electrochemical reduction of CO2 to CO have been developed using a simple and sustainable method. The catalysts exhibit high performance and selectivity in the conversion process.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Onuma Kaoru et al.
Summary: Greenhouse gas emissions and energy shortages are critical issues. Developing novel catalytic materials to reduce greenhouse gas emissions has potential applications. In this study, a composite photocatalytic material consisting of gold nanoparticles and cuprous oxide was synthesized and shown to be effective for carbon capture and storage. The study revealed the possibility of enhancing carbon capture and storage by utilizing the surface plasmon resonance of gold nanoparticles and electrochemical modification.
SUSTAINABLE ENERGY & FUELS
(2022)
Review
Chemistry, Multidisciplinary
Changlong Xiao et al.
Summary: Electrochemical conversion of CO2 to value-added chemicals and fuels using Cu catalysts has shown promising potential, but poor product selectivity remains a major technical challenge for global applications. Tailoring the electrocatalyst architecture through nanotechnology principles can significantly impact the adsorption energetics of key intermediates and reaction pathways.
Review
Chemistry, Multidisciplinary
Song Jin et al.
Summary: The electrochemical carbon dioxide reduction reaction is an important pathway for converting renewable electricity into fuels and feedstocks, with the conversion of CO2 into CO being a promising reaction. Advancements in catalyst and electrolyte design, along with understanding the catalytic mechanism, are crucial for promoting the technology towards industrial implementation. However, there are still challenges and future directions for the industrial application of this technology.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Chansol Kim et al.
Summary: The study introduced a novel porous Cu/Cu2O aerogel network to achieve high ethanol productivity by electrocatalytic CO2RR, showing promising potential for ethanol production. Experimental results demonstrated that the aerogel produced ethanol as the major product and exhibited excellent electrosynthesis performance.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Kai Ling Zhou et al.
Summary: Single-atom platinum immobilized NiO/Ni heterostructure acts as a highly efficient alkaline hydrogen evolution catalyst by enabling tunable binding abilities and enhancing water dissociation energy. Constructing hierarchical three-dimensional morphology further enhances the catalytic performance.
NATURE COMMUNICATIONS
(2021)
Article
Green & Sustainable Science & Technology
Haeun Shin et al.
Summary: This work provides a comprehensive techno-economic assessment of four major products of low-temperature CO2 electrolysis and prioritizes technological development with systematic guidelines to facilitate market deployment.
NATURE SUSTAINABILITY
(2021)
Article
Chemistry, Multidisciplinary
Jianfang Zhang et al.
Summary: CuO nanowires with in situ reconstructed Cu two-dimensional defects exhibit significantly enhanced activity and selectivity towards C2H4 during CO2RR. The high yield of C2H4 is attributed to the in situ reduction of CuO to Cu and the formation of 2D defects, such as stacking faults and twin boundaries. This finding may lead to a paradigm for the rational design of nanostructured catalysts for efficient CO2 electroreduction to C2H4.
CHEMICAL COMMUNICATIONS
(2021)
Review
Materials Science, Multidisciplinary
Yangbo Ma et al.
Summary: The study highlights recent advances in surface modification of metal materials for electrocatalytic CO2 reduction reaction (CO2RR) and their impact on the performance along with the underlying mechanisms.
Review
Chemistry, Multidisciplinary
Genxiang Wang et al.
Summary: This article provides a comprehensive review of recent research progress on the selective electrocatalytic conversion of CO2 into value-added products. It covers the history and fundamental science of electrocatalytic CO2RR, the design, preparation, and performance evaluation of electrocatalysts, factors influencing the CO2RR, and associated theoretical calculations. Emphasis is placed on emerging trends in selective electrocatalytic conversion of CO2 and discussions on structure-performance relationships and mechanisms.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Chemistry, Physical
Louisa Rui Lin Ting et al.
Article
Electrochemistry
Zhonghao Tan et al.
Article
Chemistry, Multidisciplinary
Wei Zhang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Kshirodra Kumar Patra et al.
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Wenhao Ren et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Energy & Fuels
Daobin Liu et al.
Article
Chemistry, Multidisciplinary
Chia-Jui Chang et al.
ACS CENTRAL SCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Yansong Zhou et al.
Article
Chemistry, Multidisciplinary
Chunjun Chen et al.
Review
Chemistry, Multidisciplinary
Chi Chen et al.
Article
Energy & Fuels
Nildas Zettervall et al.
Article
Chemistry, Multidisciplinary
Paramasivan Gomathisankar et al.
