Title :
Preparation of high filling ratio Fe2O3@MWCNTs composite particles and catalytic performance on thermal decomposition of ammonium perchlorate
Author :
Wang Renpeng ; Li Zhaoqian ; Ma Yongjun ; Zhao Fengqi ; Pei Chonghua
Author_Institution :
State Key Lab. Cultivation Base for Nonmetal Composites & Functional Mater, Southwest Univ. of Sci. & Technol., Mianyang, China
Abstract :
Iron oxide-filled multi-walled carbon nanotubes (Fe2O3@MWCNTs) composite particles were produced by a mild and superior physical absorption method using molten Fe(NO3)3·9H2O as the precursor. Characterisation of Fe2O3@MWCNTs composite particles was performed by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and thermogravimetry-differential scanning calorimetry. The results showed a large number of hematite phase Fe2O3 were uniformly filled in the MWCNTs, and the mass fraction of Fe2O3 was about 25.8 wt%. Furthermore, in the presence of 10 wt% Fe2O3@MWCNTs composite particles, the peak temperature of the high-temperature decomposition of ammonium perchlorate (AP) decreased by 116°C, the peak of the low-temperature decomposition disappeared and the amount of AP heat released was increased about 200 kJ/mol.
Keywords :
X-ray diffraction; ammonium compounds; carbon nanotubes; catalysis; differential scanning calorimetry; iron compounds; nanocomposites; scanning electron microscopy; Fe2O3-C; X-ray diffraction; ammonium perchlorate; catalytic performance; composite particles; filling ratio; hematite phase; high temperature decomposition; iron oxide filled multiwalled carbon nanotubes; mass fraction; physical absorption method; scanning electron microscopy; thermal decomposition; thermogravimetry-differential scanning calorimetry; transmission electron microscopy;
Journal_Title :
Micro & Nano Letters, IET
DOI :
10.1049/mnl.2014.0263
