Porous ZnAl2O4 synthesized by a modified citrate technique

被引：61

作者：

Chen, LM

Sun, XM

Liu, YN

Zhou, KB

Li, YD ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Minist Educ, Key Lab Atom & Mol Nanosci, Beijing 100084, Peoples R China

[3] Cent S Univ, Coll Chem & Chem Technol, Changsha 410083, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 376卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

porous material; citrate; catalytic properties;

D O I：

10.1016/j.jallcom.2004.01.013

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：

A modified citrate precursor technique is proposed for the preparation of porous ZnAl2O4. In this technique, ZnAl2O4 was obtained by calcination of a citrate precursor in N-2 (0.5% O-2) at 800degreesC, followed by annealing in air at 400degreesC. The ZnAl2O4 sample was characterized by X-ray diffraction, transition electron microscopy and surface area analyses (BET method), and the results showed that the ZnAl2O4 had a high surface area of 230 m(2)/g and controllable particle size from 5 run to 20nm. A Pd/ZnAl2O4 catalyst prepared based on the porous ZnAl2O4 shows good catalytic activity, indicating that ZnAl2O4 as prepared is a promising catalyst support material. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：257 / 261

页数：5

共 24 条

[11] Effect of additives on Pd/Al2O3 for CO and propylene oxidation at oxygen-deficient conditions [J].