Subsurface oxygen at transition metal surfaces: Its direct atom-resolved imaging and role in metal oxidation
文献类型：期刊论文
| 作者 | Yao, Tingting1; Jiang, Yixiao1; Yan, Xuexi1; Chen, Chunlin1,2; Li, Yanfen2,3; Ye, Hengqiang2; Ma, Xiu-Liang4,5,6 |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2024-09-15 |
| 卷号 | 277页码:11 |
| 关键词 | Initial oxidation Metal subsurface Oxygen dissolution Transmission electron microscopy First-principles calculations |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2024.120226 |
| 通讯作者 | Chen, Chunlin(clchen@imr.ac.cn) ; Li, Yanfen(yfli@imr.ac.cn) |
| 英文摘要 | Clarifying how oxygen is incorporated into the subsurface region of metal surfaces is a crucial step towards a robust understanding of the initial oxidation of metals. Due to lack of direct atomic-resolution imaging of subsurface oxygen, the atomistic mechanisms of oxygen-metal interactions and the role of subsurface oxygen remain elusive. Here, by state-of-the-art transmission electron microscopy, we demonstrate a direct atom-resolved imaging of subsurface oxygen that is dissolved in the subsurface region of the Fe (001) and Ti (0001) surfaces. It is found that subsurface oxygen occupies the octahedral sites of the Fe and Ti lattices, rather than the tetrahedral sites. First-principles calculations reveal that the octahedral-site occupancy of subsurface oxygen is energetically more favorable compared to the tetrahedral-site occupancy and will facilitate the process of metal oxidation by reducing the formation energy of metal oxides. Our findings clarify the atomistic mechanism of how oxygen attacks metal surfaces for the initiation of oxidation that occurs everywhere in nature. |
| 资助项目 | National Natural Science Foundation of China[51801215] ; National Natural Science Foundation of China[52125101] ; Basic and Applied Basic Research Major Programme of Guangdong Province, China[2021B0301030003] ; Jihua Laboratory[X210141TL210] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001285146500001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Basic and Applied Basic Research Major Programme of Guangdong Province, China ; Jihua Laboratory |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Chen, Chunlin; Li, Yanfen |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Sch Mat Sci & Engn,Univ Sci & Technol China, Shenyang 110016, Peoples R China 2.Jihua Lab, Foshan 528251, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Songshan Lake Mat Lab, Bay Area Ctr Electron Microscopy, Dongguan 523808, Peoples R China 5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 6.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Tingting,Jiang, Yixiao,Yan, Xuexi,et al. Subsurface oxygen at transition metal surfaces: Its direct atom-resolved imaging and role in metal oxidation[J]. ACTA MATERIALIA,2024,277:11. |
| APA | Yao, Tingting.,Jiang, Yixiao.,Yan, Xuexi.,Chen, Chunlin.,Li, Yanfen.,...&Ma, Xiu-Liang.(2024).Subsurface oxygen at transition metal surfaces: Its direct atom-resolved imaging and role in metal oxidation.ACTA MATERIALIA,277,11. |
| MLA | Yao, Tingting,et al."Subsurface oxygen at transition metal surfaces: Its direct atom-resolved imaging and role in metal oxidation".ACTA MATERIALIA 277(2024):11. |
入库方式： OAI收割
来源：金属研究所
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。