Surface Roughening of Pt-Polystyrene Spherical Janus Micromotors for Enhanced Motion Speed
文献类型：期刊论文
| 作者 | Zhou, Le2; Wei, Yi1,2; Zhang, Hongwen2 ; Huang, Zhulin2; Zhu, Shuyi1,2; Zhao, Zhipeng1,2; Guo, Yujing1,2; Fu, Hao1,2; Zhao, Qian2; Cai, Weiping1,2
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| 刊名 | MICROMACHINES
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 13 |
| 关键词 | Pt-PS micromotors plasma etching surface roughening Pt-pushed motion speed enhancement |
| DOI | 10.3390/mi13040555 |
| 通讯作者 | Zhang, Hongwen(hwzhang@issp.ac.cn) ; Cai, Weiping(wpcai@issp.ac.cn) |
| 英文摘要 | Spherical Janus micromotors (SJMs) have attracted much attention, and their high-speed motion is highly desired due to their various potential applications. However, the conventional template-deposition method often leads to an active Pt coating with a smooth surface, which is unbeneficial to speed enhancement in terms of catalytic reaction. Here, a facile surface roughening method is presented to fabricate the Pt-polystyrene (PS) SJMs with rough Pt surface (or Pt-r-PS SJMs) by plasma-etching the PS colloidal monolayer and then depositing Pt. The Pt-r-PS SJMs can exhibit directional motion pushed by the Pt in the various H2O2 solutions, and they show much higher motion speeds than the Pt-PS SJMs with smooth Pt surfaces at the same H2O2 concentration. The Pt-pushed motion is related to the locally asymmetric catalytic reaction of the Pt coating on PS. The speed is also associated with the surface roughness of the Pt coating. The Pt film with a rough surface causes enhanced motion speed due to the improvement of reaction catalytic activity. This work presents a new route to enhancing the motor motion speed, which is of significance in designing micromotors with high-speed motion. |
| WOS关键词 | AUTONOMOUS MOVEMENT ; FABRICATION |
| 资助项目 | Natural Science Foundation of China[51971209] ; Natural Science Foundation of China[11974352] ; Natural Science Foundation of China[51771182] ; Natural Science Foundation of China[52072373] ; CASHIPS Director's Fund[BJPY2021B04Y] ; CASHIPS Director's Fund[YZJJ2021QN24] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Instruments & Instrumentation ; Physics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000786031200001 |
| 资助机构 | Natural Science Foundation of China ; CASHIPS Director's Fund |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128633]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, Hongwen; Cai, Weiping |
| 作者单位 | 1.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol,HFIPS, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Le,Wei, Yi,Zhang, Hongwen,et al. Surface Roughening of Pt-Polystyrene Spherical Janus Micromotors for Enhanced Motion Speed[J]. MICROMACHINES,2022,13. |
| APA | Zhou, Le.,Wei, Yi.,Zhang, Hongwen.,Huang, Zhulin.,Zhu, Shuyi.,...&Cai, Weiping.(2022).Surface Roughening of Pt-Polystyrene Spherical Janus Micromotors for Enhanced Motion Speed.MICROMACHINES,13. |
| MLA | Zhou, Le,et al."Surface Roughening of Pt-Polystyrene Spherical Janus Micromotors for Enhanced Motion Speed".MICROMACHINES 13(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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