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Zang Y, Wang S, Sang J, Wei P, Zhang X, Wang Q, Wang G. Illustration of the Intrinsic Mechanism of Reconstructed Cu Clusters for Enhanced CO 2 Electroreduction to Ethanol Production with Industrial Current Density. NANO LETTERS 2024. [PMID: 38856118 DOI: 10.1021/acs.nanolett.4c01239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Copper-based catalysts have been attracting increasing attention for CO2 electroreduction into value-added multicarbon chemicals. However, most Cu-based catalysts are designed for ethylene production, while ethanol production with high Faradaic efficiency at high current density still remains a great challenge. Herein, Cu clusters supported on single-atom Cu dispersed nitrogen-doped carbon (Cux/Cu-N/C) show ethanol Faradaic efficiency of ∼40% and partial current density of ∼350 mA cm-2. Quasi in situ X-ray photoelectron spectroscopy and operando X-ray absorption spectroscopy results suggest the generation of surface asymmetrical sites of Cu+ and Cu0 as well as Cu clusters by electrochemical reduction and reconstruction during the CO2 electroreduction process. Density functional theory calculations indicate that the interaction between Cu clusters and the Cu-N/C support enhances *CO adsorption, facilitates the C-C coupling step, and favors the hydrogenation rather than dehydroxylation of the critical intermediate *CHCOH toward ethanol in the bifurcation.
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Affiliation(s)
- Yipeng Zang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Shuo Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Jiaqi Sang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 101408, China
| | - Pengfei Wei
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Xiaomin Zhang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Qi Wang
- School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China
| | - Guoxiong Wang
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Zhang N, Naden A, Zhang L, Yang X, Connor P, Irvine J. Enhanced CO 2 Electrolysis Through Mn Substitution Coupled with Ni Exsolution in Lanthanum Calcium Titanate Electrodes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308481. [PMID: 37902720 DOI: 10.1002/adma.202308481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/19/2023] [Indexed: 10/31/2023]
Abstract
In this study, perovskite oxides La0.3Ca0.6Ni0.05MnxTi0.95- xO3- γ (x = 0, 0.05, 0.10) are investigated as potential solid oxide electrolysis cell cathode materials. The catalytic activity of these cathodes toward CO2 reduction reaction is significantly enhanced through the exsolution of highly active Ni nanoparticles, driven by applying a current of 1.2 A in 97% CO2 - 3% H2O. The performance of La0.3Ca0.6Ni0.05Ti0.95O3-γ is notably improved by co-doping with Mn. Mn dopants enhance the reducibility of Ni, a crucial factor in promoting the in situ exsolution of metallic nanocatalysts in perovskite (ABO3) structures. This improvement is attributed to Mn dopants enabling more flexible coordination, resulting in higher oxygen vacancy concentration, and facilitating oxygen ion migration. Consequently, a higher density of Ni nanoparticles is formed. These oxygen vacancies also improve the adsorption, desorption, and dissociation of CO2 molecules. The dual doping strategy provides enhanced performance without degradation observed after 133 h of high-temperature operation, suggesting a reliable cathode material for CO2 electrolysis.
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Affiliation(s)
- Nuoxi Zhang
- School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Aaron Naden
- School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Lihong Zhang
- School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xiaoxia Yang
- School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
- Beijing Key Laboratory for Chemical Power Source and Green Catalysis, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Paul Connor
- School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - John Irvine
- School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
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Yu J, Hao X, Mu L, Shi W, She G. Photoelectrocatalytic Utilization of CO 2 : A Big Show of Si-based Photoelectrodes. Chemistry 2024; 30:e202303552. [PMID: 38158581 DOI: 10.1002/chem.202303552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
CO2 is a greenhouse gas that contributes to environmental deterioration; however, it can also be utilized as an abundant C1 resource for the production of valuable chemicals. Solar-driven photoelectrocatalytic (PEC) CO2 utilization represents an advanced technology for the resourcing of CO2 . The key to achieving PEC CO2 utilization lies in high-performance semiconductor photoelectrodes. Si-based photoelectrodes have attracted increasing attention in the field of PEC CO2 utilization due to their suitable band gap (1.1 eV), high carrier mobility, low cost, and abundance on Earth. There are two pathways to PEC CO2 utilization using Si-based photoelectrodes: direct reduction of CO2 into small molecule fuels and chemicals, and fixation of CO2 with organic substrates to generate high-value chemicals. The efficiency and product selectivity of PEC CO2 utilization depends on the structures of the photoelectrodes as well as the composition, morphology, and size of the catalysts. In recent years, significant and influential progress has been made in utilizing Si-based photoelectrodes for PEC CO2 utilization. This review summarizes the latest research achievements in Si-based PEC CO2 utilization, with a particular emphasis on the mechanistic understanding of CO2 reduction and fixation, which will inspire future developments in this field.
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Affiliation(s)
- Jiacheng Yu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Xue Hao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Lixuan Mu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Wensheng Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Guangwei She
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P.R. China
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Yuan H, Kong B, Liu Z, Cui L, Wang X. Dealloying-derived nanoporous Sn-doped copper with prior selectivity toward formate for CO 2 electrochemical reduction. Chem Commun (Camb) 2023; 60:184-187. [PMID: 38038960 DOI: 10.1039/d3cc04825j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
We report nanoporous Cu-Sn catalysts fabricated by chemically dealloying rapid solidified Al-Cu-Sn alloys for the CO2RR. The np-Cu11Sn1 catalyst exhibits a three-dimensional interconnected ligament-channel network structure, which can efficiently convert CO2 to formate with a Faradaic efficiency (FE) of 72.1% at -1.0 V (vs. RHE).
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Affiliation(s)
- Hefeng Yuan
- Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China.
| | - Bohao Kong
- Laboratory of Advanced Materials and Energy Electrochemistry, College of Materials Science & Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Zhehao Liu
- Laboratory of Advanced Materials and Energy Electrochemistry, College of Materials Science & Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Li Cui
- Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China.
| | - Xiaoguang Wang
- Laboratory of Advanced Materials and Energy Electrochemistry, College of Materials Science & Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
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Zeng Q, Yang G, Zhang Q, Liu Z, Dang C, Qin B, Peng F. Elucidating the origin of catalytic activity of nitrogen-doped carbon coated nickel toward electrochemical reduction of CO 2. J Colloid Interface Sci 2023; 650:132-142. [PMID: 37399749 DOI: 10.1016/j.jcis.2023.06.198] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/16/2023] [Accepted: 06/27/2023] [Indexed: 07/05/2023]
Abstract
Converting CO2 into valuable chemicals and fuels through clean and renewable energy electricity provides a way to achieve sustainable development for human societies. In this study, carbon coated nickel catalysts (Ni@NCT) were prepared by solvothermal and high-temperature pyrolysis methods. A series of Ni@NC-X catalysts were obtained by pickling with different kinds of acids for electrochemical CO2 reduction reaction (ECRR). The results show that Ni@NC-N treated with nitric acid has the highest selectivity but lower activity, Ni@NC-S treated with sulfuric acid has the lowest selectivity, and Ni@NC-Cl treated with hydrochloric acid shows the best activity and good selectivity. At -1.16 V, Ni@NC-Cl has a considerable CO yield of 472.9 μmol h-1 cm-2, which is significantly superior to Ni@NC-N (327.5), Ni@NC-S (295.6) and Ni@NC (270.8). The controlled experiments show that there is a synergistic effect between Ni and N. The chlorine adsorbed on the surface can promote the performance of ECRR. The poisoning experiments indicate that the contribution of surface Ni atoms to the ECRR is very small, and the increase of activity is mainly due to the nitrogen doped carbon coated Ni particles. The relationship between activity and selectivity of ECRR on different acid-washed catalysts was correlated by theoretical calculations for the first time, which is also in good agreement with the experimental results.
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Affiliation(s)
- Qingting Zeng
- School Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Guangxing Yang
- School Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Qiao Zhang
- School Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhiting Liu
- School Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Chengxiong Dang
- School Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Binhao Qin
- China-Ukraine Institute of Welding, Guangdong Academy of Sciences, Guangdong Provincial Key Laboratory of Advanced Welding Technology, Guangzhou 510650, China.
| | - Feng Peng
- School Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China.
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Liu C, Yan W, Wen Y, Huang Z, Chen B, Li Y, Huang X. Metal-Organic Framework Derived Cu-Ag Interface for Selective Carbon Monoxide Electroreduction to Acetate. Chemistry 2023; 29:e202301456. [PMID: 37314829 DOI: 10.1002/chem.202301456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/10/2023] [Accepted: 06/13/2023] [Indexed: 06/15/2023]
Abstract
Electrochemical carbon monoxide reduction reaction (CORR) is a potential way to obtain high-value multi-carbon (C2+ ) products. However, achieving high selectivity to acetate is still a challenge. Herein, we develop a two-dimensional Ag-modified Cu metal-organic framework (Ag0.10 @CuMOF-74) that demonstrates Faradaic efficiency (FE) for C2+ products up to 90.4 % at 200 mA cm-2 and an acetate FE of 61.1 % with a partial current density of 122.2 mA cm-2 . Detailed investigations show that the introduction of Ag on CuMOF-74 favors the generation of abundant Cu-Ag interface sites. In situ attenuated total reflection surface enhanced infrared absorption spectroscopy confirms that these Cu-Ag interface sites improve the coverage of *CO and *CHO and the coupling between each other and stabilize key intermediates *OCCHO and *OCCH2 , thus significantly promoting to the acetate selectivity on Ag0.10 @CuMOF-74. This work provides a high-efficiency pathway for CORR to C2+ products.
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Affiliation(s)
- Chang Liu
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361000, Fujian, P. R. China
| | - Wei Yan
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361000, Fujian, P. R. China
| | - Yan Wen
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361000, Fujian, P. R. China
| | - Zhongliang Huang
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361000, Fujian, P. R. China
| | - Bo Chen
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361000, Fujian, P. R. China
| | - Yunhua Li
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361000, Fujian, P. R. China
| | - Xiaoqing Huang
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361000, Fujian, P. R. China
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