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Zhang H, Li Y, Cheng C, Zhou J, Yin P, Wu H, Liang Z, Zhang J, Yun Q, Wang AL, Zhu L, Zhang B, Cao W, Meng X, Xia J, Yu Y, Lu Q. Isolated Electron-Rich Ruthenium Atoms in Intermetallic Compounds for Boosting Electrochemical Nitric Oxide Reduction to Ammonia. Angew Chem Int Ed Engl 2023; 62:e202213351. [PMID: 36357325 DOI: 10.1002/anie.202213351] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/31/2022] [Accepted: 11/09/2022] [Indexed: 11/12/2022]
Abstract
The direct electrochemical nitric oxide reduction reaction (NORR) is an attractive technique for converting NO into NH3 with low power consumption under ambient conditions. Optimizing the electronic structure of the active sites can greatly improve the performance of electrocatalysts. Herein, we prepare body-centered cubic RuGa intermetallic compounds (i.e., bcc RuGa IMCs) via a substrate-anchored thermal annealing method. The electrocatalyst exhibits a remarkable NH4 + yield rate of 320.6 μmol h-1 mg-1 Ru with the corresponding Faradaic efficiency of 72.3 % at very low potential of -0.2 V vs. reversible hydrogen electrode (RHE) in neutral media. Theoretical calculations reveal that the electron-rich Ru atoms in bcc RuGa IMCs facilitate the adsorption and activation of *HNO intermediate. Hence, the energy barrier of the potential-determining step in NORR could be greatly reduced.
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Affiliation(s)
- Huaifang Zhang
- School of Materials Science and Engineering, University of Science and Technology, Beijing, Beijing, 100083, China.,Shunde Innovation School, University of Science and Technology, Beijing Foshan, Beijing, 528399, China
| | - Yanbo Li
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300072, China
| | - Chuanqi Cheng
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Jin Zhou
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300072, China
| | - Pengfei Yin
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Haoming Wu
- School of Materials Science and Engineering, University of Science and Technology, Beijing, Beijing, 100083, China.,Shunde Innovation School, University of Science and Technology, Beijing Foshan, Beijing, 528399, China
| | - Zhiqin Liang
- Institute of Optoelectronics Technology, Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing, 100044, China
| | - Jiangwei Zhang
- College of Energy Material and Chemistry, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China
| | - Qinbai Yun
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - An-Liang Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Lijie Zhu
- School of Instrument Science and Opto-Electronics Engineering, Beijing Information Science and Technology University, Beijing, 100192, China
| | - Bin Zhang
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300072, China
| | - Wenbin Cao
- School of Materials Science and Engineering, University of Science and Technology, Beijing, Beijing, 100083, China.,Shunde Innovation School, University of Science and Technology, Beijing Foshan, Beijing, 528399, China
| | - Xiangmin Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jing Xia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yifu Yu
- Institute of Molecular Plus, School of Science, Tianjin University, Tianjin, 300072, China
| | - Qipeng Lu
- School of Materials Science and Engineering, University of Science and Technology, Beijing, Beijing, 100083, China.,Shunde Innovation School, University of Science and Technology, Beijing Foshan, Beijing, 528399, China
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