Rectification effect: A universal strategy for single-atom electrocatalysts to enhance oxygen reduction reaction
文献类型：期刊论文
| 作者 | Li, Zheng1; Wang, Qiyou2; Cheng, Hao2; Wang, Mengran2; Hu SW(胡世威)4; He, Guanjie3; Tian, Zhongliang2 |
| 刊名 | ENERGY STORAGE MATERIALS
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 76页码:104121 |
| 关键词 | Oxygen reduction reaction Single-atom electrocatalysts n junction Rectification effect |
| ISSN号 | 2405-8297 |
| DOI | 10.1016/j.ensm.2025.104121 |
| 英文摘要 | The M-Nxsingle-atom catalysts (SACs) are critical for efficient energy conversion technologies. However, most SACs with M-Nxmoiety (M: Fe, Co, or/and Mn) suffer the strong binding ability with OH* intermediates in oxygen reduction reaction (ORR), which becomes a bottleneck in accelerating the kinetics. Herein, a universal "rectification effect" strategy is proposed by constructing a p-n junction, where an n-type ZnS semiconductor longitudinally bridges withp-type M-Nxmoiety to weaken the interaction of M-Nxwith OH*. As expected, the a- ZnS/Fe-NSC electrocatalyst exhibits remarkable intrinsic activity in alkaline media with a half-wave potential of 0.90 V vs. RHE, and long-term durability (a shift of only 10 mV in E1/2 after 8,000 cycles). This phenomenon can be ascribed to the optimization of electronic structure, the S-MN4 site can effectively activate the M centre with the intermediate spin state which possesses one eg electron (t2g4 eg1) readily penetrating the antibonding it-orbital of oxygen. Moreover, it offers a superior power density and higher discharge voltage in Al-air batteries. This universal strategy provides a rational perspective for the design of SACs and electronic structure engineering to construct robust active sites for high-performance oxygen reduction. |
| 分类号 | 一类 |
| WOS研究方向 | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001428290500001 |
| 资助机构 | This work was supported by the Natural Science Foundation of China (Grants Nos. U20A20280 and 52204326) and UK Research and Inno-vation (UKRI) under the UK government's Horizon Europe funding guarantee (101077226 ; EP/Y008707/1) . |
| 其他责任者 | 胡世威，He, Guanjie，Tian, Zhongliang |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101476]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Hunan University of Science & Technology; 2.Central South University; 3.University of London; 4.Chinese Academy of Sciences Inst Mech |
| 推荐引用方式 GB/T 7714 | Li, Zheng,Wang, Qiyou,Cheng, Hao,et al. Rectification effect: A universal strategy for single-atom electrocatalysts to enhance oxygen reduction reaction[J]. ENERGY STORAGE MATERIALS,2025,76:104121. |
| APA | Li, Zheng.,Wang, Qiyou.,Cheng, Hao.,Wang, Mengran.,胡世威.,...&Tian, Zhongliang.(2025).Rectification effect: A universal strategy for single-atom electrocatalysts to enhance oxygen reduction reaction.ENERGY STORAGE MATERIALS,76,104121. |
| MLA | Li, Zheng,et al."Rectification effect: A universal strategy for single-atom electrocatalysts to enhance oxygen reduction reaction".ENERGY STORAGE MATERIALS 76(2025):104121. |
入库方式： OAI收割
来源：力学研究所
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。