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| Fabrication of flexible α-MnO_2 nanowire membranes with superior mechanical strength | |
| 作者姓名： | Xingyue Zhao Xiaochong Zhao Jianbao Li Xiangyun Deng Hong Lin |
| 作者单位： | State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering, Tsinghua University;Science and Technology on Surface Physics and Chemistry Laboratory;Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan University;College of Physics and Electronic Information, Tianjin Normal University |
| 基金项目： | supported by the National High Technology Research and Development Program of China(2011AA050522;2012AA03A610);the National Natural Science Foundation of China(51162007;51272126) |
| 摘 要： | The Assembly of one-dimensional （1D） nano- structures such as nanowires/nanorods/nanotubes into two- dimensional （2D） macrostructured films is attracting considerable research interest because of their unique properties and wide applications. In this study, flexible membranes were successfully fabricated using α-MnO2 nanowires synthesized through a hydrothermal method. The effects of thickness and post-annealing temperature on the mechanical properties of the membranes were investigated in detail. Nano-indentation measurements showed that the modulus of the as-prepared 11.75 μm-thick membrane reached 5.765 GPa, and the modulus increased with the increasing post-annealing temperature. Thus, the fabricated membranes with superior mechanical strength can have potential applications such as in photocatalysis, filtering, and supporting substrates. |
| 关 键 词： | Inorganic membrane á a-MnO á Nanowire á Flexible á Hydrothermal á Mechanical strength |
Fabrication of flexible α-MnO2 nanowire membranes with superior mechanical strength |
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| Xingyue Zhao,Xiaochong Zhao,Jianbao Li,Xiangyun Deng,Hong Lin.Fabrication of flexible α-MnO2 nanowire membranes with superior mechanical strength[J].Chinese Science Bulletin,2014,59(13):1454-1458. | |
| Authors: | Xingyue Zhao Xiaochong Zhao Jianbao Li Xiangyun Deng Hong Lin |
| Institution: | 1. State Key Laboratory of New Ceramics & Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China 2. Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang, 621907, China 3. Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan University, Haikou, 570228, China 4. College of Physics and Electronic Information, Tianjin Normal University, Tianjin, 300387, China |
| Abstract: | The Assembly of one-dimensional (1D) nanostructures such as nanowires/nanorods/nanotubes into two-dimensional (2D) macrostructured films is attracting considerable research interest because of their unique properties and wide applications. In this study, flexible membranes were successfully fabricated using α-MnO2 nanowires synthesized through a hydrothermal method. The effects of thickness and post-annealing temperature on the mechanical properties of the membranes were investigated in detail. Nano-indentation measurements showed that the modulus of the as-prepared 11.75 μm-thick membrane reached 5.765 GPa, and the modulus increased with the increasing post-annealing temperature. Thus, the fabricated membranes with superior mechanical strength can have potential applications such as in photocatalysis, filtering, and supporting substrates. |
| Keywords: | Inorganic membrane α-MnO2 Nanowire Flexible Hydrothermal Mechanicalstrength |
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