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Xue Z, Tan R, Tian J, Hou H, Zhang X, Zhao Y. Designing asymmetrical TMN 4 sites via phosphorus or sulfur dual coordination as high-performance electrocatalysts for oxygen evolution reaction. J Colloid Interface Sci 2024; 667:679-687. [PMID: 38670011 DOI: 10.1016/j.jcis.2024.04.095] [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: 01/30/2024] [Revised: 04/09/2024] [Accepted: 04/14/2024] [Indexed: 04/28/2024]
Abstract
The development ofhighly efficient oxygen evolution reaction (OER) catalysts based on more cost-effective and earth-abundant elements is of great significance and still faces a huge challenge. In this work, a series of transition metal (TM)embedding a newly-defined monolayer carbon nitride phase is theoretically profiled and constructed as a catalytic platform for OER studies. Typically, a four-step screening strategy was proposed to rapidly identified high performance candidates and the coordination structure and catalytic performance relationship was thoroughly analyzed. Moreover, the eliminating criterion was established to condenses valid range based on the Gibbs free energy of OH*. Our results reveal that the as-constructed 2FeCN/P exhibits superior activity toward OER with an ultralow overpotential of 0.25 V, at the same time, the established 3FeCN/S configuration performed well as abifunctional OER/ORR electrocatalysis with extremely low overpotential ηOER/ηORR of 0.26/0.48 V. Overall, this work provides an effective framework for screening advanced OER catalysts, which can also be extended to other complex multistep catalytic reactions.
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Affiliation(s)
- Zhe Xue
- School of Materials Science and Engineering, Collaborative Innovation Center of Ministry of Education and Shanxi Province for High-performance Al/Mg Alloy Materials, North University of China, Taiyuan 030051, China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Rui Tan
- College of Physics and Electronics Engineering, Hengyang Normal University, Hengyang 421002, China
| | - Jinzhong Tian
- School of Materials Science and Engineering, Collaborative Innovation Center of Ministry of Education and Shanxi Province for High-performance Al/Mg Alloy Materials, North University of China, Taiyuan 030051, China
| | - Hua Hou
- School of Materials Science and Engineering, Collaborative Innovation Center of Ministry of Education and Shanxi Province for High-performance Al/Mg Alloy Materials, North University of China, Taiyuan 030051, China; School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
| | - Xinyu Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China.
| | - Yuhong Zhao
- School of Materials Science and Engineering, Collaborative Innovation Center of Ministry of Education and Shanxi Province for High-performance Al/Mg Alloy Materials, North University of China, Taiyuan 030051, China; Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China.
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Huang T, Yang ZX, Li L, Wan H, Leng C, Huang GF, Hu W, Huang WQ. Dipole Effect on Oxygen Evolution Reaction of 2D Janus Single-Atom Catalysts: A Case of Rh Anchored on the P6 m2-NP Configurations. J Phys Chem Lett 2024; 15:2428-2435. [PMID: 38394780 DOI: 10.1021/acs.jpclett.3c03148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Catalytic performance of single-atom catalysts (SACs) relies fundamentally on the electronic nature and local coordination environment of the active site. Here, based on a machine-learning (ML)-aided density functional theory (DFT) method, we reveal that the intrinsic dipole in Janus materials has a significant impact on the catalytic activity of SACs, using 2D γ-phosphorus carbide (γ-PC) as a model system. Specifically, a local dipole around the active site is a key degree to tune the catalytic activity and can be used as an important descriptor with a high feature importance of 17.1% in predicting the difference of adsorption free energy (ΔGO* - ΔGOH*) to assess the activity of the oxygen evolution reaction. As a result, the catalytic performance of SACs can be tuned by an intrinsic dipole, in stark contrast to those external stimuli strategies previously used. These results suggest that dipole engineering and the revolutionary DFT-ML hybrid scheme are novel approaches for designing high-performance catalysts.
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Affiliation(s)
- Tao Huang
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Zi-Xuan Yang
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Lei Li
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Hui Wan
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China
- School of Materials and Environmental Engineering, Changsha University, Changsha 410082, China
| | - Can Leng
- College of Intelligent Manufacture, Hunan First Normal University, Changsha 410205, China
| | - Gui-Fang Huang
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Wangyu Hu
- College of Materials Science and Engineering, Hunan University, Changsha 410082, China
| | - Wei-Qing Huang
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha 410082, China
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