Characterization of activated carbon fibers using argon adsorption

Nguyen, Thanh X. ; Bhatia, Suresh K. (2005) Characterization of activated carbon fibers using argon adsorption Carbon, 43 (4). pp. 775-785. ISSN 0008-6223

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In this paper, we present results of the internal structure (pore size and pore wall thickness distributions) of a series of activated carbon fibers with different degrees of burn-off, determined from interpretation of argon adsorption data at 87 K using infinite and finite wall thickness models. The latter approach has recently been developed in our laboratory. The results show that while the low bun-off samples have nearly uniform pore size (<0.6 nm), the pore size distribution of the high burn-off samples becomes broader, with a significant increase in proportion of larger pores. The results of pore wall thickness distribution are generally consistent with development of porosity with increasing degree of burn-off. Further they show good correspondence with X-ray diffraction.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Carbon Fibers; Activation; Adsorption; Microstructure; Porosity
ID Code:2886
Deposited On:09 Oct 2010 05:48
Last Modified:17 May 2011 06:12

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