Helium‐Permselective Amorphous SiC Membrane Modified by Chemical Vapor Infiltration

Autor:	Tomohiro Saitoh, Shinji Fujisaki, Yuji Iwamoto, Takayuki Nagano, Koji Sato
Rok vydání:	2007
Předmět:	Materials science Hydrogen chemistry.chemical_element General Chemistry Permeance Condensed Matter Physics Amorphous solid chemistry.chemical_compound Membrane chemistry Chemical vapor infiltration Silicon carbide General Materials Science Composite material Pyrolysis Kinetic diameter
Zdroj:	Soft Materials. 4:109-122
ISSN:	1539-4468 1539-445X
Popis:	Helium‐permselective silicon carbide (SiC) membrane was successfully synthesized on an outer surface of γ‐alumina‐coated α‐alumina porous support by both pyrolysis of polycarbosilane without oxygen‐curing process and chemical vapor infiltration (CVI). An amorphous SiC membrane possessed He permeance of 7.7×10−8 mol · m−2 · s−1 · Pa−1, He/CO2 permselectivity of 64, and He/H2 permselectivity of 4.4 at 873 K. CVI process is an effective way to increase permselectivity of gases with small kinetic diameter.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::855829e5d7005209f6d29ce688a6c200 https://doi.org/10.1080/15394450701309790 Zobrazit plný text záznamu