Pure CuCr2O4 nanoparticles: Synthesis,characterization and their morphological and size effects on the catalytic thermal decomposition of ammonium perchlorate |
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| Institution: | 1. School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India;2. UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore, 452001, India;1. School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India;2. Juelich Centre for Neutron Science, IFF, Forschunszentrum Juelich, Outstation at FRM II, Lichtenbergstrasse 1, D-85747 Garching, Germany;1. Department of Electronics and Computer Engineering, Hanyang University, Seoul 133-791, South Korea;2. PG & Research Department of Physics, Kongunadu Arts and Science College, Coimbatore 641029, Tamilnadu, India;3. IBS, Center for Nanomaterials and Chemical Reactions, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Yuseong-gu, Daejeon 305-701, South Korea;1. Department of Physics, Çukurova University, 01330 Adana, Turkey;2. Department of Mechatronics Engineering, Adıyaman University, 01330 Adıyaman, Turkey;3. Department of Materials Engineering, Adana Science and Technology University, 01250 Adana, Turkey;1. Nanoscience and Technology Laboratory, International Islamic University, Islamabad, 44000, Pakistan;2. Department of Physics, Ghazi University, Dera Ghazi Khan, Pakistan |
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| Abstract: | In the present paper a pure phase of the copper chromite spinel nanoparticles (CuCr2O4 SNPs) were synthesized via the sol–gel route using citric acid as a complexing agent. Then, the CuCr2O4 SNPs has been characterized by field emission scanning electron microscope (FE-SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). In the next step, with the addition of Cu–Cr–O nanoparticles (NPs), the effects of different parameters such as Cu–Cr–O particle size and the Cu/Cr molar ratios on the thermal behavior of Cu–Cr–O NPs + AP (ammonium perchlorate) mixtures were investigated. As such, the catalytic effect of the Cu–Cr–O NPs for thermal decomposition of AP was evaluated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). TGA/DSC results showed that the samples with different morphologies exhibited different catalytic activity in different stages of thermal decomposition of AP. Also, in the presence of Cu–Cr–O nanocatalysts, all of the exothermic peaks of AP shifted to a lower temperature, indicating the thermal decomposition of AP was enhanced. Moreover, the heat released (ΔH) in the presence of Cu–Cr–O nanocatalysts was increased to 1490 J g−1. |
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| Keywords: | Sol–gel chemistry Cu–Cr/AP composites Catalytic activity Thermal decomposition Ammonium perchlorate |
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