CarbonΒ±ceramic cellular monoliths were prepared by coating a ceramic cellular monolith with a polymeric solution (carbon precursor). Phenolic (resol and novolac) or furanic resins, and polysaccharides (sucrose and dextrose) were used as carbon precursors. The following procedure was adopted: (a) sub
Preparation of microporous carbon nanospheres
β Scribed by Sang-Ick Lee; Seong-Ho Yoon; Chul Wan Park; Yozo Korai; Isao Mochida
- Book ID
- 104106548
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 58 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0008-6223
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β¦ Synopsis
Carbon nanotechnology has provided two striking con-thoroughly and dried at 353 K in vacuo. The dried particles cepts of carbon materials. One is nano-phase carbon were oxidatively stabilized in air at 553 K for 30 min. The 21 materials which include typical carbon nanotubes with a heating rate was 1 K min . The stabilized particles were 21 single wall. The other is micro-carbon materials which carbonized at 973 K at the heating rate of 5 K min for 1 carry nano-scale carbon components, the analyses and h under nitrogen flow. control of such components being expected to produce The surface of particle was observed by FE-SEM (JSM novel carbon materials with better properties. 25S, Jeol). Ar adsorption-desorption on the prepared Carbon microspheres have attracted many researches in nanospheres at liquid Ar temperature (87 K) was measured terms of preparation, analysis of structure, measurement of using ASAP 2000 (micrometrics) equipped with microporproperties and application since mesocarbon microbeads of osity accessory. Prior to adsorption, a sample was degassed 23
π SIMILAR VOLUMES
Modification ofthe pore structure of microporous carbons by depositing carbon from pyrolysis of CJH6 between 973-I I23 K was investigated in regard to development of molecular sieving properties for separation of O2 and Ar. Excellent adsorption kinetics and selectivity for separation of O2 and Ar we