| Highly stabilized and selective ammonia electro-oxidation over CuNi metallic glass nanoarray | |
| Tian, Yunrui1,2; Chen, Rui1; Liu, Xiaoqing1; Mao, Zixian1; Tan, Haotian1,2; Yang, De'an1; Hou, Feng1; Liu, Xiaoguang3; Yin, Lichang3; Yan, Xiao2; Liang, Ji1 | |
| 通讯作者 | Hou, Feng(houf@tju.edu.cn) ; Yin, Lichang(lcyin@imr.ac.cn) ; Yan, Xiao(yanxiao@sziit.edu.cn) ; Liang, Ji(liangji@tju.edu.cn) |
| 2024-12-13 | |
| 发表期刊 | CARBON ENERGY
 |
| 页码 | 13 |
| 摘要 | Electrochemical nitrogen looping represents a promising carbon-free and sustainable solution for the energy transition, in which electrochemical ammonia oxidation stays at the central position. However, the various nitrogen-containing intermediates tend to poison and corrode the electrocatalysts, even the state-of-the-art noble-metal ones, which is worsened at a high applied potential. Herein, we present an ultrarapid laser quenching strategy for constructing a corrosion-resistant and nanostructured CuNi alloy metallic glass electrocatalyst. In this material, single-atom Cu species are firmly bonded with the surrounding Ni atoms, endowing exceptional resistance against ammonia corrosion relative of conventional CuNi alloys. Remarkably, a record-high durability for over 300 h is achieved. Ultrarapid quenching also allows a much higher Cu content than typical single-atom alloys, simultaneously yielding a high rate and selectivity for ammonia oxidation reaction (AOR). Consequently, an outstanding ammonia conversion rate of up to 95% is achieved with 91.8% selectivity toward nitrite after 8 h. Theoretical simulations reveal that the structural amorphization of CuNi alloy could effectively modify the electronic configuration and reaction pathway, generating stable single-atom Cu active sites with low kinetic barriers for AOR. This ultrarapid laser quenching strategy thus provides a new avenue for constructing metallic glasses with well-defined nanostructures, presenting feasible opportunities for performance enhancement for AOR and other electrocatalytic processes. |
| 关键词 | ammonia oxidation reaction CuNi laser quenching metallic glasses |
| 资助者 | National Natural Science Foundation of China ; Fund of Department of Education of Guangdong Province for Higher Educational Institutions ; Shenzhen General Project for Institutions of Higher Education |
| DOI | 10.1002/cey2.667 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China ; Fund of Department of Education of Guangdong Province for Higher Educational Institutions[2022ZDZX4104] ; Shenzhen General Project for Institutions of Higher Education[20231127113219001] ; [22179093] ; [22379111] |
| WOS研究方向 | Chemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science |
| WOS类目 | Chemistry, Physical ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:001375979000001 |
| 出版者 | WILEY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/181403 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Hou, Feng; Yin, Lichang; Yan, Xiao; Liang, Ji |
| 作者单位 | 1.Tianjin Univ, Sch Mat Sci & Engn, Key Lab Adv Ceram & Machining Technol, Minist Educ, Tianjin 300072, Peoples R China 2.Shenzhen Inst Informat Technol, Shenzhen 518172, Guangdong, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Yunrui,Chen, Rui,Liu, Xiaoqing,et al. Highly stabilized and selective ammonia electro-oxidation over CuNi metallic glass nanoarray[J]. CARBON ENERGY,2024:13. |
| APA | Tian, Yunrui.,Chen, Rui.,Liu, Xiaoqing.,Mao, Zixian.,Tan, Haotian.,...&Liang, Ji.(2024).Highly stabilized and selective ammonia electro-oxidation over CuNi metallic glass nanoarray.CARBON ENERGY,13. |
| MLA | Tian, Yunrui,et al."Highly stabilized and selective ammonia electro-oxidation over CuNi metallic glass nanoarray".CARBON ENERGY (2024):13. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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。
修改评论