Electrochemical hydrogen evolution reaction efficiently catalyzed by Ru-N coupling in defect-rich Ru/g-C3N4nanosheets
文献类型：期刊论文
| 作者 | Li, Dongze3; Liu, Yang2; Liu, Zong3; Yang, Jun1; Hu, Chaoquan1; Feng, Ligang3 |
| 刊名 | Journal of Materials Chemistry A
 |
| 出版日期 | 2021-07-14 |
| 卷号 | 9期号:26页码:15019-15026 |
| 关键词 | Hydrogen production - Electrolytes - Defects - Glass membrane electrodes - Ruthenium compounds - Catalyst activity |
| ISSN号 | 20507488 |
| DOI | 10.1039/d1ta03809e |
| 英文摘要 | The low intrinsic activity of Ru seriously restricts its practical application in hydrogen generation (HER)viasustainable water splitting. Herein, we report robust and reliable defect-rich Ru/g-C3N4nanosheet catalysts for electrochemical hydrogen generation both in alkaline and acidic electrolytes. The catalyst can be fabricated by facile pyrolysis of the freeze-dried Ru3+-melamine complex, and efficient Ru-N coupling was demonstrated by some spectroscopic characterizations. Theoretical analysis revealed efficient orbital hybridization of Ru and N for Ru-N bond formation in the system, and thereby favorable electron transfer and intermediate adsorption property. As a result, the proposed catalysts exhibited small overpotentials of 27 mV and 34 mV in acidic and alkaline electrolytes, respectively, to achieve 10 mA cm鈭?, when loaded on an inert glassy carbon electrode, which ranked among the top Ru-based catalysts. It also exhibited high catalytic stability including 10鈥?00 CV cycles in the dynamic stability study and 20 hours of steady-state operation. The multiple fold increase in intrinsic activity over Ru/C was indicated by specific activity, mass activity, and turnover frequency values; rapid charge transfer, faster kinetics and increased active site exposure were also observed on this catalyst system due to the efficient Ru-N coupling. The current work reports a facile approach for Ru-N coupling structure fabrication and its contribution to the high HER performance, which is conducive to the development of high-performing Ru-based catalysts. 漏 The Royal Society of Chemistry 2021. |
| 学科主题 | Charge Transfer |
| 项目编号 | The work is supported by the National Natural Science Foundation of China (21972124, 21603041) and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institution. The support from the Nanjing ZhongKeGeTeKang Company (SFW-2020-017) is also appreciated. L. Feng is grateful for the support of the Six Talent Peaks Project of Jiangsu Province (XCL-070-2018). We thank Xudong Yang for the experimental help and discussion in the current work.The work is supported by the National Natural Science Foundation of China (21972124, 21603041) and a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institution. The support from the Nanjing Zhong-KeGeTeKang Company (SFW-2020-017) is also appreciated. L. Feng is grateful for the support of the Six Talent Peaks Project of Jiangsu Province (XCL-070-2018). We thank Xudong Yang for the experimental help and discussion in the current work. |
| 出版者 | Royal Society of Chemistry |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/60295]  |
| 作者单位 | 1.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China 2.School of Materials Science and Engineering, Henan Normal University, Xinxiang; Henan; 453007, China 3.School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou; 225002, China |
| 推荐引用方式 GB/T 7714 | Li, Dongze,Liu, Yang,Liu, Zong,et al. Electrochemical hydrogen evolution reaction efficiently catalyzed by Ru-N coupling in defect-rich Ru/g-C3N4nanosheets[J]. Journal of Materials Chemistry A,2021,9(26):15019-15026. |
| APA | Li, Dongze,Liu, Yang,Liu, Zong,Yang, Jun,Hu, Chaoquan,&Feng, Ligang.(2021).Electrochemical hydrogen evolution reaction efficiently catalyzed by Ru-N coupling in defect-rich Ru/g-C3N4nanosheets.Journal of Materials Chemistry A,9(26),15019-15026. |
| MLA | Li, Dongze,et al."Electrochemical hydrogen evolution reaction efficiently catalyzed by Ru-N coupling in defect-rich Ru/g-C3N4nanosheets".Journal of Materials Chemistry A 9.26(2021):15019-15026. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。