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Zhang H, Zhang R, Hu S, Yang K, Sun C, Wang Q, Tang Y. Electroreduction of CO 2 on Cu, Fe, or Ni-doped Diamane Sheets: A DFT Study. Chemistry 2024; 30:e202303995. [PMID: 38246877 DOI: 10.1002/chem.202303995] [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: 11/30/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/23/2024]
Abstract
Poor mass transfer behavior and inherent activity limit the efficiency of traditional catalysts in electrocatalyzing carbon dioxide reduction reactions. However, the development of novel nanomaterials provides new strategies to solve the above problems. Herein, we propose novel single-metal atom catalysts, namely diamane-based electrocatalysts doped with Cu, Fe, and Ni, explored through density functional theory (DFT) calculations. We thoroughly investigated the doping pattern and energetics for different dopants. Furthermore, we systematically investigated the conversion process of CO2 to C1 or C2+ products, utilizing the free energy analysis of reaction pathways. Our results reveal that dopants could only be introduced into diamane following a specific pattern. Dopants significantly enhance the CO2 adsorption ability of diamane, with Fe and Ni proving notably more effective than Cu. After CO2 adsorption, Cu- and Fe-doped diamane prefer to catalyze CO2RR, while Ni-doped diamane favors hydrogen evolution reaction (HER). The C-C coupling reaction on Cu-hollow diamane, Cu-bridge diamane, and Fe-hollow diamane tends to be from C2+ products. Among all examined catalysts, Cu-hollow diamane shows better electro-catalytic performance. Our study demonstrates the feasibility of and contributes to the development of diamane-based electro-catalysts for CO2RR.
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Affiliation(s)
- Hongping Zhang
- School of Mechanical Engineering, Institute for Advanced Study, Chengdu University, Chengdu, 610106, Sichuan, China
| | - Run Zhang
- School of Materials and Chemistry, Southwest University of Science and Technology, Sichuan, 621010, China
| | - Shuchun Hu
- School of Materials and Environmental Engineering, Chengdu Technological University, Sichuan, 610031, China
| | - Kun Yang
- School of Mechanical Engineering, Institute for Advanced Study, Chengdu University, Chengdu, 610106, Sichuan, China
| | - Chenghua Sun
- Department of Chemistry and Biotechnology, and Center for Translational Atomaterials, Faculty of Science Engineering & Technology, Swinburne University of Technology, Hawthorn, Victoria, 3122, Australia
| | - Qingyuan Wang
- School of Mechanical Engineering, Institute for Advanced Study, Chengdu University, Chengdu, 610106, Sichuan, China
| | - Youhong Tang
- Institute for Nanoscale Science and Technology, College of Science and Engineering, Flinders University, South Australia, 5042, Australia
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Abstract
CO2 reutilization processes contribute to the mitigation of CO2 as a potent greenhouse gas (GHG) through reusing and converting it into economically valuable chemical products including methanol, dimethyl ether, and methane. Solar thermochemical conversion and photochemical and electrochemical CO2 reduction processes are emerging technologies in which solar energy is utilized to provide the energy required for the endothermic dissociation of CO2. Owing to the surface-dependent nature of these technologies, their performance is significantly reliant on the solid reactant/catalyst accessible surface area. Solid porous structures either entirely made from the catalyst or used as a support for coating the catalyst/solid reactants can increase the number of active reaction sites and, thus, the kinetics of CO2 reutilization reactions. This paper reviews the principles and application of porous materials for CO2 reutilization pathways in solar thermochemical, photochemical, and electrochemical reduction technologies. Then, the state of the development of each technology is critically reviewed and evaluated with the focus on the use of porous materials. Finally, the research needs and challenges are presented to further advance the implementation of porous materials in the CO2 reutilization processes and the commercialization of the aforementioned technologies.
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