Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 165, Issue 1-3, Pages 1056-1061Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2008.10.086
Keywords
Perovskite-type LaFeO3; alpha-Fe2O3; Catalytic activity; HMX
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Funding
- Natural Science Fund Council of China (NSFC) [20671011, 20731002, 20671084]
- NSAF [10876002]
- Foundation Research Project of Beijing Institute of Technology [20060742022]
- 111 Project [1307012]
- Key Laboratory of Structural Chemistry Foundation (KLSCF) [060017]
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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.
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