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Hydrothermal synthesis of graphene oxide/NiO and its influence on the thermal decomposition of ammonium perchlorate

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Title Hydrothermal synthesis of graphene oxide/NiO and its influence on the thermal decomposition of ammonium perchlorate
 
Creator Jebraeil, Seyed Mohammad
Eslami, Abbas
 
Subject Nanocomposite
Ammonium perchlorate decomposition
Decomposition kinetics
 
Description 278-284
Graphene oxide/nickel oxide (GO/NiO) nanocomposite has been successfully synthesized through a one-step
hydrothermal procedure. The GO/NiO nanocomposite is characterized by Fourier transform infrared, X-ray diffraction,
scanning electron microscopy, and energy dispersive X-ray analysis. The influence of GO/NiO nanocomposites on the
thermal decomposition of ammonium perchlorate (AP) is investigated by thermogravimetry, and differential scanning
calorimetry analysis. The results reveal two stages thermal decomposition of pure AP changed to a one-stage highly
exothermic process at much lower temperatures in the presence of GO/NiO nanocomposites. The released heat of AP
thermal decomposition is increased from 649 J g-1 for pure AP (AP0) to 1259 and 2195 J.g-1, for AP:GO/NiO 97:3 (AP3)
and 95:5 (AP5) mixtures, respectively. Furthermore, decomposition temperature of AP significantly has decreased from
419 °C (AP0) to 307 °C (AP3) and 287 °C (AP5). The kinetic parameters are calculated by Kissinger equation for thermal
decomposition of AP0 and AP5. The catalytic activity of GO/NiO nanocomposite is revealed by pre-exponential factor and
the calculated activation energy, also the decomposition rate constant is increased from 4.2 × 10-3 s-1 at 419 °C (pure AP) to
1.04 × 10-2 s-1 at 287 °C (peak temperature of AP5 sample).
 
Date 2022-03-23T10:25:12Z
2022-03-23T10:25:12Z
2022-03
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscair.res.in/handle/123456789/59344
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJC Vol.61(03) [March 2022]