Porous anodic alumina optimized as a catalyst support for microreactors

被引：95

作者：

Ganley, JC ^{[1
]}

Riechmann, KL ^{[1
]}

Seebauer, EG ^{[1
]}

Masel, RI ^{[1
]}

机构：

[1] Univ Illinois, Dept Chem & Biomol Engn, Roger Adams Lab 213, Urbana, IL 61801 USA

来源：

JOURNAL OF CATALYSIS | 2004年 / 227卷 / 01期

关键词：

anodic alumina catalyst support; surface area optimization; ammonia reforming;

D O I：

10.1016/j.jcat.2004.06.016

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：

This paper describes the optimization of process conditions for making porous anodic alumina as a catalyst support in monolithic microreactors. The basic process involves direct current anodization of 1100 alloy aluminum in oxalic acid. Electrolyte concentration, temperature, and anodization potential are optimized with respect to oxidation efficiency and pore density via a Box-Behnken experimental design to the values of 0.6 M, 18degreesC, and 30 V respectively. The effects of subsequent hydrothermal-thermal treatment on the surface area enhancement and surface morphology of the porous oxide are also investigated and optimized. The resulting films are employed in the fabrication of active catalytic aluminum-alumina microreactors for the decomposition of ammonia to hydrogen and nitrogen. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：26 / 32

页数：7

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