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Titolo:
Si-Al-C gas separation membranes derived from polydimethylsilane and aluminum acetylacetonate
Autore:
Chao, CC; Tsai, DS;
Indirizzi:
Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Taipei 106, Taiwan Natl Taiwan Univ Sci & Technol Taipei Taiwan 106 ngn, Taipei 106, Taiwan
Titolo Testata:
JOURNAL OF MEMBRANE SCIENCE
fascicolo: 1-2, volume: 192, anno: 2001,
pagine: 209 - 216
SICI:
0376-7388(20011015)192:1-2<209:SGSMDF>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR-SIEVE MEMBRANES; HIGH-TEMPERATURE; CARBON MEMBRANES; AIR SEPARATION; MIXTURE;
Keywords:
inorganic membranes; polydimethylsilane; microporous and porous membranes; gas separations; pore structure;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Tsai, DS Natl Taiwan Univ Sci & Technol, Dept Chem Engn, 43 Keelung Rd,Sec4, Taipei 106, Taiwan Natl Taiwan Univ Sci & Technol 43 Keelung Rd,Sec 4 Taipei Taiwan 106
Citazione:
C.C. Chao e D.S. Tsai, "Si-Al-C gas separation membranes derived from polydimethylsilane and aluminum acetylacetonate", J MEMBR SCI, 192(1-2), 2001, pp. 209-216

Abstract

An inorganic Si-Al-C membrane is synthesized from pyrolyzing a polymeric precursor of polydimethylsilane and aluminum acetylacetonate supported on analumina tube. The PMS + 10% Al-AcAc membrane, 773 K pyrolyzed, exhibits a hydrogen permeance 1.99 x 10(-9) mol Pa-1 s(-1) m(-2), H-2/N-2 selectivity 4.77, H-2/i-C4H10 selectivity 26.3 at room temperature, and H-2 permeance 6.57 x 10(-9) mol Pa-1 s(-1) m(-2), H-2/N-2 Selectivity 4.80, H-2/i-C4H10 selectivity 7.20 at 473 K. For the membrane pyrolyzed under a high temperature, its gas permeance is generally lower than those pyrolyzed at low temperatures due to pore sintering. Variations of permeation properties with respect to pyrolysis temperature could be interpreted from BET, infrared, and TGA/DTA data on PMS + Al-AcAc pyrolyzed residues. (C) 2001 Elsevier Science B. V. All rights reserved.

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Documento generato il 04/07/20 alle ore 17:54:46