Activated carbon aerogels
- Chiba Univ. (Japan)
- Lawrence Livermore National Lab., CA (United States)
- Massachusetts Inst. of Technology, Cambridge, MA (United States)
Activated carbon aerogels were obtained from the CO{sub 2} activation of the carbon aerogels. The adsorption isotherms of nitrogen on activated carbon aerogels at 77 K were measured and analyzed by the high-resolution {alpha}{sub s} plot to evaluate their porosities. The {alpha}{sub s} plot showed an upward deviation from linearity below {alpha}{sub s} = 0.5, suggesting that the presence of micropores becomes more predominant with the extent of the activation. Activation increased noticeably the pore volume and the surface area (the maximum value: 2600 m{sup 2}.g{sup -1}) without change of the basic network structure of primary particles. Activated carbon aerogels had a bimodal pore size distribution of uniform micropores and mesopores. 16 refs., 2 figs., 1 tab.
- OSTI ID:
- 458640
- Journal Information:
- Langmuir, Journal Name: Langmuir Journal Issue: 26 Vol. 12; ISSN LANGD5; ISSN 0743-7463
- Country of Publication:
- United States
- Language:
- English
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