Permeability reduction in porous materials by in situ formed silica gel
نویسندگان
چکیده
منابع مشابه
Electrochemically Formed Porous Silica
Controlled electrochemical formation of porous silica can be realized in dilute aqueous, neutral-pH, fluoride medium. Formation of a porous film is initiated by sweeping the potential applied to silicon to values higher than 20 V. Film formation, reaching a steady state, may be pursued in a wide range of potentials, including lower potentials. The origin of a threshold potential for porous film...
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Inclusion complexes of cyclodextrins with organometallic coordination compounds of Pd, Pt, Rh, Fe, Ni, and Ru have been used to produce porous metal-silica hybrid materials. The cyclodextrins are templates for the structure of the silica and lead to a uniform “wormtype” pore system. After the templating step the organometallic compounds can be employed as in situ precursors for the preparation ...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2007
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.2817577