Preparation of palladium membranes from the reaction of Pd(C3H3)(C5H5) with H2:: wet-impregnated deposition

被引：23

作者：

Jun, CS ^{[1
]}

Lee, KH ^{[1
]}

机构：

[1] Korea Res Inst Chem Technol, Membrane & Separat Res Ctr, Taejon 305606, South Korea

来源：

JOURNAL OF MEMBRANE SCIENCE | 1999年 / 157卷 / 01期

关键词：

composite membrane; palladium; hydrogen separation; wet-dipping; organometallic precursor;

D O I：

10.1016/S0376-7388(98)00366-4

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A new technique to prepare a palladium membrane for high-temperature hydrogen permeation was developed: Pd(C3H3)(C5H5) an organometallic precursor reacted with hydrogen at room temperature to decompose into Pd crystallites. This reaction together with sintering treatment under hydrogen and nitrogen in sequence resulted in the formation of dense films of pure palladium on the surface of the mesoporous stainless steel (SUS) support. Under H-2 atmosphere the palladium membrane could be sintered at 823 K to form a skin layer inside the support pores. The hydrogen permeance was 5.16x10(-2) cm(3) cm(-2) cm Hg-1 s(-1) at 723 K. H-2/N-2 selectivity was 1600 at 723 K. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：107 / 115

页数：9

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