Effect of Mg2NiH4 on the Thermal Decomposition of Ammonium Perchlorate

Chem. J. Chinese Universities

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Effect of Mg₂NiH₄ on the Thermal Decomposition of Ammonium Perchlorate

LIU Lei-Li¹*, LI Feng-Sheng², ZHI Chun-Lei², TAN Ling-Hua², YANG Yi², ZHANG Qing-Si¹

1. College of Chemical Engineering, Shandong Institute of Light Industry, Jinan 250353, China;
2. National Special Superfine Powder Engineering Research Center, Nanjing University of Science & Technology, Nanjing 210094, China

Received:2006-10-29 Revised:1900-01-01 Online:2007-08-10 Published:2007-08-10
Contact: LIU Lei-Li

Abstract

Abstract: Magnesium-based hydrogen storage material Mg₂NiH₄ was prepared with replacement-diffusion method and its structure was determined by XRD, ICP and DSC-TG. The thermal decomposition behavior of ammonium perchlorate(AP) was investigated in the presence of Mg₂NiH₄ by the method of DSC. The results show that Mg₂NiH₄ had obvious influence on the thermal decomposition of AP. Mg₂NiH₄ showed an evident catalytic effect on the lower temperature thermal decomposition of AP, and the higher thermal decomposition temperature of AP was decreased by Mg₂NiH₄, with a clear increase at DSC heat release. The catalytic effect of Mg₂NiH₄ on the thermal decomposition of AP was enhanced with the increase in content, and the DSC heat release was at its biggest value when the content of Mg₂NiH₄ was 30%(mass fraction). With the increase of hydrogen storage, the catalytic effect became stronger. The mechanism of catalyzing the thermal decomposition of AP is as follows: H₂ released from Mg₂NiH₄and Mg, Ni reacted with the decomposed product of AP.

Key words: Magnesium-based hydrogen storage material, Preparation, Ammonium perchlorate, Thermal decomposition, Catalysis property

CLC Number:

O614

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LIU Lei-Li¹*, LI Feng-Sheng², ZHI Chun-Lei², TAN Ling-Hua², YANG Yi², ZHANG Qing-Si¹. Effect of Mg₂NiH₄ on the Thermal Decomposition of Ammonium Perchlorate[J]. Chem. J. Chinese Universities, doi: .

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Effect of Mg₂NiH₄ on the Thermal Decomposition of Ammonium Perchlorate

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