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论文类型：期刊论文

发表时间：2009-06-01

发表刊物：CHINESE SCIENCE BULLETIN

收录刊物：SCIE

卷号：54

期号：12

页面范围：2131-2133

ISSN号：1001-6538

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

摘要：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.