• 文献标题:   Study of energy release in Fe2O3/Al nano-thermite with graphene as an additional fuel
  • 文献类型:   Article
  • 作  者:   THAKUR P, SHARMA V, THAKUR N
  • 作者关键词:   nanothermite, mlg nanoplatelet, physical mixing method, activation energy, thermite reaction, energy release
  • 出版物名称:   PHYSICA BCONDENSED MATTER
  • ISSN:   0921-4526 EI 1873-2135
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1016/j.physb.2020.412803 EA MAR 2021
  • 出版年:   2021

▎ 摘  要

In nano-thermites, due to improper contacts between the reactants in solid-state reaction, the complete energy release during redox-reaction is still challenging. Here, Fe2O3/Al nano-thermite is synthesized with different weight fraction of multi-layered graphene (MLG) nanoplatelets by physical mixing technique. X-ray diffraction reveals that the synthesis method does not change the phase of reactants. The morphology of nano-thermite is examined by scanning electron microscopy and transmission electron microscopy which reveals that MLG nanoplatelets are homogeneously dispersed in the samples. Structural stability of MLG nanoplatelets present in nano-thermite is observed by Raman spectroscopy. The nano-thermite reaction is analyzed by differential scanning calorimetry. The results show that an increase in MLG content in nano-thermite sample Al/Fe2O3, from 0 wt% to 12 wt% is responsible for increase in the corresponding exothermic enthalpy from 71 J/g to 1537 J/g. On the contrary, ignition temperature and activation energy of these samples get reduced with increasing MLG.