Preparation of high filling ratio Fe2O3@MWCNTs composite particles and catalytic performance on thermal decomposition of ammonium perchlorate

• Published in: Micro & nano letters Vol. 9; no. 11; pp. 787 - 791
• Main Authors: Renpeng, Wang, Zhaoqian, Li, Yongjun, Ma, Fengqi, Zhao, Chonghua, Pei
• Format: Journal Article
• Language: English
• Published: The Institution of Engineering and Technology 01.11.2014
• Subjects: ammonium compounds; ammonium perchlorate; carbon nanotubes; catalysis; catalytic performance; composite particles; differential scanning calorimetry; Fe2O3‐C; filling ratio; hematite phase; high temperature decomposition; iron compounds; iron oxide filled multiwalled carbon nanotubes; mass fraction; nanocomposites; physical absorption method; scanning electron microscopy; thermal decomposition; thermogravimetry‐differential scanning calorimetry; transmission electron microscopy; X‐ray diffraction; scanning electron microscopy; mass fraction; ammonium perchlorate; thermal decomposition; iron oxide filled multiwalled carbon nanotubes; filling ratio; X-ray diffraction; catalysis; high temperature decomposition; physical absorption method; iron compounds; nanocomposites; composite particles; catalytic performance; hematite phase; thermogravimetry-differential scanning calorimetry; carbon nanotubes; differential scanning calorimetry; transmission electron microscopy; ammonium compounds; Fe2O3-C
• ISSN: 1750-0443; 1750-0443
• DOI: 10.1049/mnl.2014.0263

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.