Preparation and catalytic activities of LaFeO3 and Fe2O3 for HMX thermal decomposition

被引：123
作者：
Wei, Zhi-Xian [1 ,2 ,3 ,4 ]
Xu, Yan-Qing [1 ,2 ,3 ]
Liu, Hai-Yan [4 ]
Hu, Chang-Wen [1 ,2 ,3 ]
机构：
[1] Beijing Inst Technol, Inst Chem Phys, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Dept Chem, Beijing 100081, Peoples R China
[3] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China
[4] N China Univ, Inst Sci, Dept Chem, Taiyuan 030051, Shanxi, Peoples R China
来源：
JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 165卷 / 1-3期
关键词：
Perovskite-type LaFeO3; alpha-Fe2O3; Catalytic activity; HMX; OXIDATION; METHANE; OXIDE;
D O I：
10.1016/j.jhazmat.2008.10.086
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Perovskite-type LaFeO3 and alpha-Fe2O3 with high specific surface areas were directly prepared with appropriate stearic acid-nitrates ratios by a novel stearic acid solution combustion method. The obtained powders were characterized by XRD, FT-IR and XPS techniques. The catalytic activities of perovskite-type LaFeO3 and alpha-Fe2O3 for the thermal decomposition of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) were investigated by TG and TG-EGA techniques. The experimental results show that the catalytic activity of perovskite-type LaFeO3 was much higher than that of alpha-Fe2O3 because of higher concentration of surface-adsorbed oxygen (O-ad) and hydroxyl of LaFeO3. The study points out a potential way to develop new and more active perovskite-type catalysts for the HMX thermal decomposition. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：1056 / 1061
页数：6
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