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

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.

Inspec keywords: catalysis; X-ray diffraction; iron compounds; ammonium compounds; differential scanning calorimetry; scanning electron microscopy; carbon nanotubes; nanocomposites

Other keywords: catalytic performance; transmission electron microscopy; ammonium perchlorate; X-ray diffraction; thermogravimetry-differential scanning calorimetry; physical absorption method; thermal decomposition; mass fraction; Fe2O3-C; scanning electron microscopy; iron oxide filled multiwalled carbon nanotubes; high temperature decomposition; filling ratio; composite particles; hematite phase

Subjects: Methods of nanofabrication and processing; Heterogeneous catalysis at surfaces and other surface reactions; Preparation of graphene and graphene-related materials, intercalation compounds, and diamond

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