Synthesis and characterization of heteropolyacid nanoporous carbon membranes

被引：8

作者：

Strano, MS

Foley, HC ^{[1
]}

机构：

[1] Penn State Univ, Dept Chem Engn, University Pk, PA 16802 USA

[2] Univ Delaware, Dept Chem Engn, Colburn Lab, Newark, DE 19716 USA

来源：

CATALYSIS LETTERS | 2001年 / 74卷 / 3-4期

关键词：

heteropolyacids; membrane reactors; MTBE decomposition; isobutylene production;

D O I：

10.1023/A:1016629013227

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Heteropolyacid nanoporous carbon membranes were synthesized by re-precipitation of 12-tungstophosphoric acid on a prefabricated nanoporous carbon film. The Keggin structure is maintained on and within the 8 mum film as inferred from FTIR spectroscopy and XRD. Gas permeation reveals that separation performance of the carbon membrane is maintained after deposition although total membrane flux decreases by nearly 40% for N-2 permeation. Semi-batch membrane reactor performance in the decomposition of methyl tert-butyl ether at 55 degreesC shows significant enhancement of the conversion with 96.5% compared with 64.1 % for a non-selective membrane analog under the same conditions.

引用

页码：177 / 184

页数：8

共 28 条

[1] Spray-coating of nanoporous carbon membranes for air separation [J].