Manufacturing of new nano-structured ceramic-metallic composite microporous membranes consisting of ZrO2, Al2O3, TiO2 and stainless steel
Frequently, the membrane employed in a traditional nano-filtration (NF) or gas separation (GS) membrane device consists of a polymeric material, having significant disadvantages including a restricted mechanical, chemical and thermal stability. As an alternative for the polymeric membranes, ceramic membranes with an improved stability have been introduced, but the current membranes still suffer from stability problems (e.g. brittle material, restricted chemical stability in water vapour). This paper reports the preparation of novel hybrid metallic-ceramic membranes, based on a porous 316L stainless-steel support material. The optimized membranes were made by deposition of a fine suspension with a particle size of～180 nm, a colloidal sol with a particle size of～30 nm and a nano-particle sol with a particle size of～5 nm and show a comparable multilayer structure as current ceramic membranes for micro-, ultra-and nano-filtration and gas separation. The essential new features of the membranes include the use of an alternative metallic support material, which provides a high mechanical stability to the membrane, and the application of zirconia-and titania based functional membrane layers, which display a high chemical and thermal stability for potential filtration or gas separation applications.
Porous metallic support Macroporous membrane Mesoporous membrane Microporous membrane ZrO2
Tim Van Gestel Doris Sebold Wilhelm A.Meulenberg Martin Bram Hans-Peter Buchkremer
Forschungszentrum Jülich GmbH, Institute of Energy Research, IEF-1: Materials Synthesis and Processing, Leo-Brandt-Strasse, D-52425 Jülich, Germany
国际会议
The 16th International Conference on Solid State Ionics(第十六届国际固态离子学会议)
上海
英文
1360-1366
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）