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Indexed by:期刊论文

Date of Publication:2009-06-01

Journal:CHINESE SCIENCE BULLETIN

Included Journals:SCIE

Volume:54

Issue:12

Page Number:2131-2133

ISSN No.:1001-6538

Key Words:Pd/silicalite-1 membrane; intermediate layer; permeance; H(2) separation

Abstract:A novel Pd/silicalite-1 composite membrane supported on the macroporous tubular stainless steel substrate was successfully fabricated by electroless plating at 303 K. The structure, morphology and gaseous permeability of the membrane were detected by X-ray diffractiometry (XRD), scanning electron microscopy (SEM) and single-gas permeation test, respectively. Results confirm the formation of a thin, smooth, and continuous Pd/silicalite-1 composite membrane. The obtained composite membrane shows a high H(2) permeance of 1.15x10(-6) mol center dot m(-2)center dot s(-1)center dot Pa(-1) with moderate H(2) selectivity of 250 for H(2)/N(2) at 773 K, at 0.1 MPa pressure drop, suggesting the potential application for H(2) separation.