Fabrication of Pt–Ag–Au heterogeneous truncated hollow sub-microspheres for chemically self-propelled colloidal motors
文献类型：期刊论文
| 作者 | Wei,Yi1,2; Zhao,Qian2; Zhang,Hongwen2 ; Zhou,Le1,2; Cai,Weiping1,2
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| 刊名 | Nano Futures
 |
| 出版日期 | 2022-05-06 |
| 卷号 | 6 |
| 关键词 | truncated hollow sub-microspheres Pt–Ag–Au multilayer nanoshells template etching and isotropic deposition chemically propelled colloidal motors |
| DOI | 10.1088/2399-1984/ac57bc |
| 通讯作者 | Zhao,Qian() ; Cai,Weiping() |
| 英文摘要 | Abstract Colloidal motors with cavity structure, which have advantages over solid motors in catalytic efficiency, cargo capacity and biocompatibility, are still expected. Here, we design and fabricate a type of truncated hollow sub-microsphere via organic colloidal template etching/heating and layer-by-layer isotropic deposition. The as-prepared truncated hollow sphere is of one circular open pore through the shell layer and built of Pt, Ag and Au shell layers from inside to outside. They are controllable in sphere diameter, circular open pore size and shell thickness, which depend on the template and deposition conditions. Further experiments have shown that the Ag sandwich layer and post-deposition ageing process are crucial to obtaining strong and complete truncated hollow sub-microspheres. Their formation is attributed to the template geometry and nearly isotropic deposition. Due to the catalytic Pt layer on the inner surface and the truncated hollow spherical structure, such Pt–Ag–Au hollow spheres are demonstrated to be chemically propelled colloidal motors, which can directionally move in H2O2-containing solutions. This study presents a controllable route for mass-fabricating heterogeneous multi-layer truncated hollow sub-microspheres, and provides a new type of chemically self-propelled colloidal motor. |
| 语种 | 英语 |
| 出版者 | IOP Publishing |
| WOS记录号 | IOP:NANOF_6_2_025003 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129623]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhao,Qian; Cai,Weiping |
| 作者单位 | 1.University of Science and Technology of China, Hefei 230026, People’s Republic of China 2.Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Wei,Yi,Zhao,Qian,Zhang,Hongwen,et al. Fabrication of Pt–Ag–Au heterogeneous truncated hollow sub-microspheres for chemically self-propelled colloidal motors[J]. Nano Futures,2022,6. |
| APA | Wei,Yi,Zhao,Qian,Zhang,Hongwen,Zhou,Le,&Cai,Weiping.(2022).Fabrication of Pt–Ag–Au heterogeneous truncated hollow sub-microspheres for chemically self-propelled colloidal motors.Nano Futures,6. |
| MLA | Wei,Yi,et al."Fabrication of Pt–Ag–Au heterogeneous truncated hollow sub-microspheres for chemically self-propelled colloidal motors".Nano Futures 6(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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