Coal studies by small angle X-ray scattering (Journal article)

Mitropoulos, A.Ch.Stefanopoulos, K.L.Kanellopoulos, N.K.


 Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/7293
Two highly volatile bituminous coal samples were characterized by adsorption and small-angle X-ray scattering (SAXS). The SAXS measurements were repeated on samples that had been brought to equilibrium at various relative pressures of carbon tetrachloride which has a similar electron density as the coals. The validity of this combined technique was ascertained by reconstructing the adsorption isotherms from the SAXS data. A theoretical approach connecting the two methods was considered, and simple formulae were derived. The reconstruction of the adsorption isotherm is influenced by several parameters. Adsorption in conjunction with SAXS can provide information on the pore structure, the adsorption mechanism, and the swelling of the solid matrix upon adsorption.
Institution and School/Department of submitter: Δεν υπάρχει πληροφορία
Subject classification: Bituminous coal
Keywords: Adsorption;Bituminous coal;Contrast matching;Small-angle X-ray scattering;Swelling
URI: http://hdl.handle.net/123456789/7293
Publisher: Δεν υπάρχει πληροφορία
Item type: journalArticle
General Description / Additional Comments: Volume24 , Issue 1-Mar, pp. 29 -39
http://www.scopus.com/inward/record.url?eid=2-s2.0-0032178516&partnerID=40&md5=fc33b4e43419158238cac1e901d4faed
Natl. Ctr. Sci. Res. 'Demokritos', Inst. Phys. Chem., 153 10 Ag. P., Attikis, Greece
Subject classification: Bituminous coal
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Item language: en
Item access scheme: free
Institution and School/Department of submitter: Δεν υπάρχει πληροφορία
Publication date: 1998
Bibliographic citation: Δεν υπάρχει πληροφορία
Abstract: Two highly volatile bituminous coal samples were characterized by adsorption and small-angle X-ray scattering (SAXS). The SAXS measurements were repeated on samples that had been brought to equilibrium at various relative pressures of carbon tetrachloride which has a similar electron density as the coals. The validity of this combined technique was ascertained by reconstructing the adsorption isotherms from the SAXS data. A theoretical approach connecting the two methods was considered, and simple formulae were derived. The reconstruction of the adsorption isotherm is influenced by several parameters. Adsorption in conjunction with SAXS can provide information on the pore structure, the adsorption mechanism, and the swelling of the solid matrix upon adsorption.
Publisher: Δεν υπάρχει πληροφορία
Journal name: Microporous and Mesoporous Materials
Journal type: peer-reviewed
Appears in Collections:ΑΡΘΡΑ-ΜΕΛΕΤΕΣ

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