Scanning tunnelling microscopy study of activated carbon fibres
| Autor: | Jean-Baptiste Donnet, Bo-Sung Rhee, R. Y. Qin, S. K. Ryu, Soo-Jin Park |
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| Rok vydání: | 1993 |
| Předmět: |
Materials science
Mechanical Engineering Carbon fibers Nanotechnology Microstructure law.invention Chemical engineering Mechanics of Materials law visual_art Microscopy medicine visual_art.visual_art_medium General Materials Science Scanning tunneling microscope Porosity Mesoporous material Quantum tunnelling Activated carbon medicine.drug |
| Zdroj: | Journal of Materials Science. 28:2950-2954 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/bf00354698 |
| Popis: | Scanning tunnelling microscopy (STM) has been used to study isotropic pitch-based carbon fibres before and after steam activation. The results show that the present carbon fibre precursor exhibits a particulate surface which is very favourable for the formation of activated carbon fibre. After activation, the carbon fibre surface becomes much more porous and rougher, and the mesopores are evidently present on the surface. Because the scale is down to atomic resolution, the STM observations offer direct evidence for the existence of micropores on the surface of the activated carbon fibres. In addition, the surface textures of both fibres are presented and discussed. |
| Databáze: | OpenAIRE |
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