Facile synthesis of RGO-Fe 2 O 3 nanocomposite: A novel catalyzing agent for composite propellants
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Facile synthesis of RGO-Fe2O3 nanocomposite: A novel catalyzing agent for composite propellants Sherif Elbasuney1,2,*, Gharieb S. El-Sayyad2,3,*
, M. Yehia2, and Seham K. Abdel Aal4
1
Head of Nanotechnology Research Center, Military Technical College (MTC), Egyptian Armed Forces, Cairo, Egypt School of Chemical Engineering, Military Technical College (MTC), Egyptian Armed Forces, Cairo, Egypt 3 Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt 4 Physics Department, Faculty of Science, Cairo University, Giza 12613, Egypt 2
Received: 31 August 2020
ABSTRACT
Accepted: 1 October 2020
Whereas ferric oxide particles are common catalyst for energetic oxidizers such as ammonium perchlorate (APC), reduced graphene oxide (RGO) with superior thermal conductivity as well as high interfacial surface area could be candidate substrate for advanced catalytic systems. This study reports on the facile synthesis of RGO-Fe2O3 nanocomposite as a novel catalyzing agent for APC oxidizer. GO was developed via oxidation of graphite using Hummer’s method, while RGO was developed via GO reduction with hydrazine hydrate. RGOFe2O3 nanocomposite was developed via direct precipitation method. Morphological characterization of RGO-Fe2O3 nanocomposite demonstrated the formation of hematite RGO-Fe2O3 nanocomposite in the form of rod-shaped crystals with average crystallite size 30 nm. The synthesized RGO-Fe2O3 nanocomposite was effectively-encapsulated into APC particles via co-precipitation technique. The catalytic performance of RGO-Fe2O3 nanocomposite on APC thermal behavior was evaluated using DSC and TGA. RGO-Fe2O3 nanocomposite demonstrated superior catalytic performance; APC initial endothermic decomposition was decreased by 16% which could be ascribed to enhance the thermal conductivity and catalytic efficiency of the developed hybrid. APC total heat release was enhanced by 83%; this could be ascribed to superior interfacial surface area. Gaseous products could be efficiently-adsorbed on the catalyst surface offering high combustion enthalpy.
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Springer Science+Business
Media, LLC, part of Springer Nature 2020
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https://doi.org/10.1007/s10854-020-04593-z
J Mater Sci: Mater Electron
1 Introduction Carbon nanomaterials (CNMs) can find wide applications as carriers for energetic components by coating or encapsulation [1–3]. CNMs particularly reduced graphene oxide (RGO) can find wide applications such as energetic storage, catalysis, and advanced energetic systems [3, 4]. RGO can offer high interfacial surface area, thermal conductivity, as well as catalyzing potential [5, 6]. Furthermore, RGO could be ideal substrate for energetic components such thermite particles as well as different catalysts. Moreover, RGO can also be functionalized with different energetic particles [7, 8]. Functiona
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