Key influence factors in magneto-controlled motion of micro-nano graphite flakes
文献类型：期刊论文
| 作者 | Gao, Youlin1,3; Wang, Junsong1,2; Chen, Mianke1,3; Zhang, Chenghong1,2; Qiu, Kang1,2; Khalifa, Mahmoud A.1; Luo, Jialiang1; Chang, Xiao1; Zheng, Ganhong3; Ding, Wei3 |
| 刊名 | NANOTECHNOLOGY
 |
| 出版日期 | 2024-09-16 |
| 卷号 | 35 |
| 关键词 | magneto-controlled motion graphite flake magnetic field gradient delay effect |
| ISSN号 | 0957-4484 |
| DOI | 10.1088/1361-6528/ad568d |
| 通讯作者 | Ding, Wei(weiding@mail.ustc.edu.cn) ; Sheng, Zhigao(zhigaosheng@hmfl.ac.cn) |
| 英文摘要 | Magneto-controlling micro-nano materials' motion is a promising way that enable the noncontact, remote, and nondestructive controlling of their macrostructure as well as functionalities. Here, an optical microscope with an electromagnet was constructed to in-situ monitor the magneto-controlled motion process microscopically. Taking micro-nano graphite flake (MGF) as a model system, we experimentally demonstrate the key factors that influence the magneto-controlling of materials' motion. First, the product of intensity and gradient of the magnetic field (B del B) has been confirmed as the dominant driving force and the flipping direction of the MGFs is accordingly determined by the vector direction of Bx del B. Second, quantitatively comparative experiments further revealed that the threshold driving force has an exponential relationship with the structural aspect ratio (b/a) of MGFs. Third, the critical magneto-driving force is found as proportional to the viscosity of the solvent. Accordingly, a dynamic model is developed that describes the flip of the diamagnetic flake under external magnetic field excitation considering the shape factor. It is shown experimentally that the model accurately predicts the flip dynamics of the flake under different magnetic field conditions. In addition, we also discovered the delay effect, multiple cycle acceleration effect, and the fatigue effects due to gas adsorption in magneto-controlled MGFs flipping. These findings can be used to achieve magneto-controlling materials' macrostructure as well as their functionalities. |
| WOS关键词 | ALIGNMENT ; PLATELETS ; GRAPHENE ; SURFACE |
| 资助项目 | National Key R&D Program of China[2021YFA1600200] ; National Natural Science Foundation of China (NSFC)[U2032218] ; National Natural Science Foundation of China (NSFC)[11904116] ; National Natural Science Foundation of China (NSFC)[12111530283] ; Plan for Major Provincial Science &Technology Project[202003a05020018] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001262006300001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Plan for Major Provincial Science &Technology Project |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/136923]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ding, Wei; Sheng, Zhigao |
| 作者单位 | 1.Chinese Acad Sci, High Magnet Field Lab, HFIPS, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Youlin,Wang, Junsong,Chen, Mianke,et al. Key influence factors in magneto-controlled motion of micro-nano graphite flakes[J]. NANOTECHNOLOGY,2024,35. |
| APA | Gao, Youlin.,Wang, Junsong.,Chen, Mianke.,Zhang, Chenghong.,Qiu, Kang.,...&Sheng, Zhigao.(2024).Key influence factors in magneto-controlled motion of micro-nano graphite flakes.NANOTECHNOLOGY,35. |
| MLA | Gao, Youlin,et al."Key influence factors in magneto-controlled motion of micro-nano graphite flakes".NANOTECHNOLOGY 35(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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