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Chen Z, Ma Z, Fan G, Li F. Critical Role of Cu Nanoparticle-Loaded Cu(100) Surface Structures on Structured Copper-Based Catalysts in Boosting Ethanol Generation in CO 2 Electroreduction. ACS APPLIED MATERIALS & INTERFACES 2024; 16:35143-35154. [PMID: 38943565 DOI: 10.1021/acsami.4c05973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2024]
Abstract
Presently, realizing high ethanol selectivity in CO2 electroreduction remains challenging due to difficult C-C coupling and fierce product competition. In this work, we report an innovative approach for improving the efficiency of Cu-based electrocatalysts in ethanol generation from electrocatalytic CO2 reduction using a crystal plane modification strategy. These novel Cu-based electrocatalysts were fabricated by electrochemically activating three-dimensional (3D) flower-like CuO micro/nanostructures grown in situ on copper foils and modifying with surfactants. It was demonstrated that the fabricated Cu-based electrocatalyst featured a predominantly exposed Cu(100) surface loaded with high-density Cu nanoparticles (NPs). The optimal Cu-based electrocatalyst displayed considerably improved CO2 electroreduction performance, with a Faraday efficiency of 37.9% for ethanol and a maximum Faraday efficiency of 68.0% for C2+ products at -1.4 V vs RHE in an H-cell, accompanied by a high current density of 69.9 mA·cm-2, much better than the particulate Cu-based electrocatalyst. It was unveiled that the Cu(100)-rich surface of nanoscale petals with abundant under-coordinated copper atoms from CuNPs was conducive to the formation and stabilization of key *CH3CHO and *OC2H5 intermediates, thereby promoting ethanol generation. This study highlighted the critical role of CuNP-loaded Cu(100) surface structures on structured Cu-based electrocatalysts in enhancing ethanol production for the CO2 electroreduction process.
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Affiliation(s)
- Zhijian Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhenghui Ma
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guoli Fan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Feng Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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2
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Du S, Yang P, Li M, Tao L, Wang S, Liu ZQ. Catalysts and electrolyzers for the electrochemical CO 2 reduction reaction: from laboratory to industrial applications. Chem Commun (Camb) 2024; 60:1207-1221. [PMID: 38186078 DOI: 10.1039/d3cc05453e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
To cope with the urgent environmental pressure and tight energy demand, using electrocatalytic methods to drive the reduction of carbon dioxide molecules and produce a variety of fuels and chemicals, is one of the effective pathways to achieve carbon neutrality. In recent years, many significant advances in the study of the electrochemical carbon dioxide reduction reaction (CO2RR) have been made, but most of the works exhibit low current density, small electrode area and poor long-term stability, which are not suitable for large-scale industrial applications. Herein, combining the research achievements obtained in laboratories and the practical demand of industrial production, we summarize recent frontier progress in the field of the electrochemical CO2RR, including the fundamentals of catalytic reactions, catalyst design and preparation, and the construction of electrolyzers. In addition, we discuss the bottleneck problem of industrial CO2 electrolysis, and further present the prospect of the essential issues to be solved by the available technology for industrial electrolysis. This review can provide some basic understanding and knowledge accumulation for the development and practical application of electrochemical CO2RR technology.
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Affiliation(s)
- Shiqian Du
- Guangzhou Key Laboratory for Clean Energy and Materials, School of Chemistry and Chemical Engineering, Guangzhou University, China.
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, China.
| | - Pupu Yang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, China.
| | - Mengyu Li
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, China.
| | - Li Tao
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, China.
| | - Shuangyin Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, China.
| | - Zhao-Qing Liu
- Guangzhou Key Laboratory for Clean Energy and Materials, School of Chemistry and Chemical Engineering, Guangzhou University, China.
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3
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Li Y, Chen Y, Chen T, Shi G, Zhu L, Sun Y, Yu M. Insight into the Electrochemical CO 2-to-Ethanol Conversion Catalyzed by Cu 2S Nanocrystal-Decorated Cu Nanosheets. ACS APPLIED MATERIALS & INTERFACES 2023; 15:18857-18866. [PMID: 37022952 DOI: 10.1021/acsami.3c00032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Ethanol (C2H5OH) is an economically ideal C2 product in electrochemical CO2 reduction. However, the CO2-to-C2H5OH conversion yield has been rather low and the underlying catalytic mechanism remains vague or unexplored in most cases. Herein, by decorating small Cu2S nanocrystals uniform ly on Cu nanosheets, three desirable features are integrated into the electrocatalyst, including a relatively high positive local charge on Cu (Cuδ+), abundant interfaces between Cuδ+ and zero-valence Cu0, and a non-flat, stepped catalyst surface, leading to the promoted affinity of *CO, decreased *COCO formation barrier, and thermodynamically preferred *CH2CHO-to-*CH3CHO conversion. As a result, a high partial current density of ∼20.7 mA cm-2 and a Faraday efficiency of 46% for C2H5OH are delivered at -1.2 V vs reversible hydrogen electrode in an H-cell containing a 0.1 M KHCO3 solution. This work proposes an efficient strategy for the high-yield CO2-to-C2H5OH conversion, emphasizing the promise for the industrial production of alcohol and related products from CO2.
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Affiliation(s)
- Yi Li
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yanghan Chen
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Condensed Matter Science and Technology Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Tao Chen
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, China
| | - Guoqiang Shi
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Lin Zhu
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Ye Sun
- Condensed Matter Science and Technology Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Miao Yu
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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He S, Xiong B, Xu F, Chen B, Cui Y, Hu C, Yue G, Shen YA. Low-Temperature Transient Liquid Phase Bonding Technology via Cu Porous-Sn58Bi Solid-Liquid System under Formic Acid Atmosphere. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2389. [PMID: 36984269 PMCID: PMC10051379 DOI: 10.3390/ma16062389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
This study proposes a low-temperature transient liquid phase bonding (TLPB) method using Sn58Bi/porous Cu/Sn58Bi to enable efficient power-device packaging at high temperatures. The bonding mechanism is attributed to the rapid reaction between porous Cu and Sn58Bi solder, leading to the formation of intermetallic compounds with high melting point at low temperatures. The present paper investigates the effects of bonding atmosphere, bonding time, and external pressure on the shear strength of metal joints. Under formic acid (FA) atmosphere, Cu6Sn5 forms at the porous Cu foil/Sn58Bi interface, and some of it transforms into Cu3Sn. External pressure significantly reduces the micropores and thickness of the joint interconnection layer, resulting in a ductile fracture failure mode. The metal joint obtained under a pressure of 10 MPa at 250 °C for 5 min exhibits outstanding bonding mechanical performance with a shear strength of 62.2 MPa.
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Affiliation(s)
- Siliang He
- Guangxi Education Department Key Laboratory of Microelectronic Packaging & Assembly Technology, School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (S.H.)
- Institute of Semiconductors, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Bifu Xiong
- Guangxi Education Department Key Laboratory of Microelectronic Packaging & Assembly Technology, School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (S.H.)
| | - Fangyi Xu
- Guangxi Education Department Key Laboratory of Microelectronic Packaging & Assembly Technology, School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (S.H.)
| | - Biyang Chen
- Guangxi Education Department Key Laboratory of Microelectronic Packaging & Assembly Technology, School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (S.H.)
| | - Yinhua Cui
- Institute of Semiconductors, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Chuan Hu
- Institute of Semiconductors, Guangdong Academy of Sciences, Guangzhou 510650, China
| | - Gao Yue
- Guangxi Education Department Key Laboratory of Microelectronic Packaging & Assembly Technology, School of Mechanical & Electrical Engineering, Guilin University of Electronic Technology, Guilin 541004, China; (S.H.)
- Guilin Fuda Co., Ltd., Guilin 541199, China
| | - Yu-An Shen
- Department of Materials Science and Engineering, Feng Chia University, Taichung 407, Taiwan
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5
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Low-voltage anodizing of copper in sodium bicarbonate solutions. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.141918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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6
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Chen X, Zhao Y, Han J, Bu Y. Copper-Based Catalysts for Electrochemical Reduction of Carbon Dioxide to Ethylene. Chempluschem 2023; 88:e202200370. [PMID: 36651767 DOI: 10.1002/cplu.202200370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/01/2023] [Indexed: 01/06/2023]
Abstract
Electrochemical reduction of CO2 into high energy density multi-carbon chemicals or fuels (e. g., ethylene) via new renewable energy storage has extraordinary implications for carbon neutrality. Copper (Cu)-based catalysts have been recognized as the most promising catalysts for the electrochemical reduction of CO2 to ethylene (C2 H4 ) due to their moderate CO adsorption energy and moderate hydrogen precipitation potential. However, the poor selectivity, low current density and high overpotential of the CO2 RR into C2 H4 greatly limit its industrial applications. Meanwhile, the complex reaction mechanism is still unclear, which leads to blindness in the design of catalysts. Herein, we systematically summarized the latest research, proposed possible conversion mechanisms and categorized the general strategies to adjust of the structure and composition for CO2 RR, such as tip effect, defect engineering, crystal plane catalysis, synergistic effect, nanoconfinement effect and so on. Eventually, we provided a prospect of the future challenges for further development and progress in CO2 RR. Previous reviews have summarized catalyst designs for the reduction of CO2 to multi-carbon products, while lacking in targeting C2 H4 alone, an important industrial feedstock. This Review mainly aims to provide a comprehensive understanding for the design strategies and challenges of electrocatalytic CO2 reduction to C2 H4 through recent researches and further propose some guidelines for the future design of copper-based catalysts for electroreduction of CO2 to C2 H4 .
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Affiliation(s)
- Xiao Chen
- Jiangsu Collaborative Innovation Center of, Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of, Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Energy and Environment Jointed Lab (UNNU), School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China
| | - Yunxia Zhao
- Jiangsu Collaborative Innovation Center of, Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of, Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Energy and Environment Jointed Lab (UNNU), School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China
| | - Jiayi Han
- Jiangsu Collaborative Innovation Center of, Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of, Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Energy and Environment Jointed Lab (UNNU), School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China
| | - Yunfei Bu
- Jiangsu Collaborative Innovation Center of, Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of, Atmospheric Environment Monitoring and Pollution Control (AEMPC), UNIST-NUIST Energy and Environment Jointed Lab (UNNU), School of Environmental Science and Technology, Nanjing University of Information Science and Technology (NUIST), Nanjing, 210044, P. R. China
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7
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Liu J, Fan Q, Chen X, Kuang S, Yan T, Liu H, Zhang S, Ma X. Hollow Copper Nanocubes Promoting CO 2 Electroreduction to Multicarbon Products. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jinping Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Qun Fan
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Xiaoyi Chen
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Siyu Kuang
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Tianxiang Yan
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Hai Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Sheng Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou350207, P. R. China
| | - Xinbin Ma
- Key Laboratory for Green Chemical Technology of Ministry of Education, Haihe Laboratory of Sustainable Chemical Transformations, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou350207, P. R. China
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8
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Ethanol formation via CO2 electroreduction at low overvoltage over exposed (111) plane of CuO thin film. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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9
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Liu C, Zhang XD, Huang JM, Guan MX, Xu M, Gu ZY. In Situ Reconstruction of Cu–N Coordinated MOFs to Generate Dispersive Cu/Cu 2O Nanoclusters for Selective Electroreduction of CO 2 to C 2H 4. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chang Liu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, P. R. China
| | - Xiang-Da Zhang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, P. R. China
| | - Jian-Mei Huang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, P. R. China
| | - Meng-Xue Guan
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, P. R. China
| | - Ming Xu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, P. R. China
| | - Zhi-Yuan Gu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, P. R. China
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10
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Li X, Wang J, Lv X, Yang Y, Xu Y, Liu Q, Wu HB. Hetero-Interfaces on Cu Electrode for Enhanced Electrochemical Conversion of CO 2 to Multi-Carbon Products. NANO-MICRO LETTERS 2022; 14:134. [PMID: 35699835 PMCID: PMC9198171 DOI: 10.1007/s40820-022-00879-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/09/2022] [Indexed: 05/14/2023]
Abstract
Electrochemical CO2 reduction reaction (CO2RR) to multi-carbon products would simultaneously reduce CO2 emission and produce high-value chemicals. Herein, we report Cu electrodes modified by metal-organic framework (MOF) exhibiting enhanced electrocatalytic performance to convert CO2 into ethylene and ethanol. The Zr-based MOF, UiO-66 would in situ transform into amorphous ZrOx nanoparticles (a-ZrOx), constructing a-ZrOx/Cu hetero-interface as a dual-site catalyst. The Faradaic efficiency of multi-carbon (C2+) products for optimal UiO-66-coated Cu (0.5-UiO/Cu) electrode reaches a high value of 74% at - 1.05 V versus RHE. The intrinsic activity for C2+ products on 0.5-UiO/Cu electrode is about two times higher than that of Cu foil. In situ surface-enhanced Raman spectra demonstrate that UiO-66-derived a-ZrOx coating can promote the stabilization of atop-bound CO* intermediates on Cu surface during CO2 electrolysis, leading to increased CO* coverage and facilitating the C-C coupling process. The present study gives new insights into tailoring the adsorption configurations of CO2RR intermediate by designing dual-site electrocatalysts with hetero-interfaces.
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Affiliation(s)
- Xiaotong Li
- Institute for Composites Science Innovation (InCSI) and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jianghao Wang
- Institute for Composites Science Innovation (InCSI) and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Xiangzhou Lv
- Institute for Composites Science Innovation (InCSI) and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yue Yang
- Institute for Composites Science Innovation (InCSI) and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yifei Xu
- Institute for Composites Science Innovation (InCSI) and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Qian Liu
- Institute for Composites Science Innovation (InCSI) and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Hao Bin Wu
- Institute for Composites Science Innovation (InCSI) and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
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11
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Jiang CJ, Hou Y, Liu H, Wang LT, Zhang GR, Lu JX, Wang H. CO2 electrocatalytic reduction on Cu nanoparticles loaded on nitrogen-doped carbon. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Cao G, Cao X, Shan M, Li M, Zhu X, Han J, Ge Q, Wang H. Surface cavity effect on C2H4 formation from electrochemical reduction of CO2 as studied using Cu2O cubes. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05190-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Zhou JH, Yuan CY, Zheng YL, Yin HJ, Yuan K, Sun XC, Zhang YW. The site pair matching of a tandem Au/CuO-CuO nanocatalyst for promoting the selective electrolysis of CO 2 to C 2 products. RSC Adv 2021; 11:38486-38494. [PMID: 35493218 PMCID: PMC9044023 DOI: 10.1039/d1ra07507a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/16/2021] [Indexed: 01/08/2023] Open
Abstract
Tandem catalysis, in which a CO2-to-C2 process is divided into a CO2-to-CO/*CO step and a CO/*CO-to-C2 step, is promising for enhancing the C2 product selectivity when using Cu-based electrochemical CO2 reduction catalysts. In this work, a nanoporous hollow Au/CuO–CuO tandem catalyst was used for catalyzing the eCO2RR, which exhibited a C2 product FE of 52.8% at −1.0 V vs. RHE and a C2 product partial current density of 78.77 mA cm−2 at −1.5 V vs. RHE. In addition, the C2 product FE stably remained at over 40% over a wide potential range, from −1.0 V to −1.5 V. This superior performance was attributed to good matching in terms of the optimal working potential and charge-transfer resistance between CO/*CO-production sites (Au/CuO) and CO/*CO-reduction sites (CuO). This site pair matching effect ensured sufficient supplies of CO/*CO and electrons at CuO sites at the working potentials, thus dramatically enhancing the formation rate of C2 products. C2 product FE of 52.8% was achieved in eCO2RR at −1.0 V vs. RHE using a nanoporous hollow Au/CuO–CuO tandem catalyst due to the matching of optimal working potentials and charge-transfer resistances of the CO-production sites and CO-reduction sites.![]()
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Affiliation(s)
- Jun-Hao Zhou
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University No. 5 Yiheyuan Road, Haidian District Beijing 100871 China +86-10-62756787 +86-10-62756787
| | - Chen-Yue Yuan
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University No. 5 Yiheyuan Road, Haidian District Beijing 100871 China +86-10-62756787 +86-10-62756787
| | - Ya-Li Zheng
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University No. 5 Yiheyuan Road, Haidian District Beijing 100871 China +86-10-62756787 +86-10-62756787
| | - Hai-Jing Yin
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University No. 5 Yiheyuan Road, Haidian District Beijing 100871 China +86-10-62756787 +86-10-62756787
| | - Kun Yuan
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University No. 5 Yiheyuan Road, Haidian District Beijing 100871 China +86-10-62756787 +86-10-62756787
| | - Xiao-Chen Sun
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University No. 5 Yiheyuan Road, Haidian District Beijing 100871 China +86-10-62756787 +86-10-62756787
| | - Ya-Wen Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University No. 5 Yiheyuan Road, Haidian District Beijing 100871 China +86-10-62756787 +86-10-62756787
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