Combustion Synthesis of La0.8Sr0.2MnO3 and Its Effect on HMX Thermal Decomposition

王艳; 龚磊; 李延斌; 卫芝贤

doi:10.1016/S1004-9541(10)60237-6

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Combustion Synthesis of La_0.8Sr_0.2MnO₃ and Its Effect on HMX Thermal Decomposition

Updated：2026-01-06

- Combustion Synthesis of La_0.8Sr_0.2MnO₃ and Its Effect on HMX Thermal Decomposition
- Chinese Journal of Chemical Engineering Vol. 18, Issue 3, Pages: 397-401(2010)
- Affiliations：
  
  Department of Chemistry, Science Institute, North University of China,Taiyuan,China,030051
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(10)60237-6
  CLC：
- Published：2010
- Accepted：
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DOI：

Sr DOI： 10.1016/S1004-9541(10)60237-6.

摘要

Abstract

Perovskite-type La

0.8

0.2

MnO

was prepared by stearic acid gel combustion method.The obtained powders were characterized by X-ray diffraction(XRD)

Fourier transform infrared spectroscopy(FT-IR)

scaning electron micrograph(SEM)and X-ray photoelectron spectroscopy(XPS)techniques.The catalytic activity of La

0.8

0.2

MnO

was investigated on thermal decomposition of octahydro-1

7-tetranitro-1

7-tetrazocine (HMX)by thermal gravity-differential scanning calorimetry(TG-DSC)techniques.The experimental results show that La

0.8

0.2

MnO

is an effective catalyst for HMX thermal decomposition.The surface-adsorbed species such as H

and adsorbed oxygen(Oad)could result in an advance in the onset temperature of HMX thermal decomposition.The mixture system of Mn

and Mn

ions and lattice oxygen could play key roles for the increase of the decomposition heat of HMX because these exothermic reactions could be catalyzed by La

0.8

0.2

MnO

between CO and NO

(from the thermal decomposition of HMX)and the oxidation reaction of CO.According to the previous researches and our results

perovskite-type La

0.8

0.2

MnO

may be used as a novel catalyst or modifier for nitrate ester plasticized polyether(NEPE)propellant.

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