Pore structure and fractal characteristics of activated carbon fibers characterized by using HRTEM
| Autor: | Kai-Ming Liang, Meng-Long Cui, Jun-Bing Yang, Zheng-Hong Huang, Wen Lai Huang, Feiyu Kang, Zhiying Cheng |
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| Rok vydání: | 2001 |
| Předmět: |
Materials science
Fast Fourier transform Analytical chemistry Mineralogy Microstructure Fractal dimension Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials Colloid and Surface Chemistry Adsorption Fractal Transmission electron microscopy medicine High-resolution transmission electron microscopy Activated carbon medicine.drug |
| Zdroj: | Journal of colloid and interface science. 249(2) |
| ISSN: | 0021-9797 |
| Popis: | The pore microstructures in two viscouse rayon-based ACF samples were characterized by nitrogen adsorption and HRTEM. For TEM, a two-dimensional fast Fourier transform (FFT) of the original TEM images was performed, and pores in different size ranges were extracted by the inverse FFT (IFFT) operation. The surface fractal dimensions of the samples were evaluated by using both N(2) adsorption and TEM image analysis. The results show that TEM can portray the shapes of the pore, and it can give a quantitative evaluation of surface irregularity that is consistent with nitrogen adsorption results. |
| Databáze: | OpenAIRE |
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