Abstract
Copper β-resorcylate (cupric 2,4-dihydroxy-benzoate, β-Cu) nanoparticles have been successfully synthesized via a facile wet mechanical grinding and dried by vacuum drying and vacuum freeze-drying techniques. The crystal forms were characterized by X-ray diffraction, and the particle sizes were analyzed using scanning electron microscopy and transmission electron microscopy. At the same time, the catalytic performances of the as-prepared β-Cu nanoparticles on the thermal decomposition of ammonium perchlorate (AP) were studied through thermogravimetric analysis/differential scanning calorimetric techniques. The results revealed that nano-sized β-Cu obtained by vacuum drying displays a strong tendency to agglomeration, and conversely nano-sized β-Cu obtained by vacuum freeze-drying shows a semi-spherical morphology and good dispersion with a fairly uniform size of 100 nm. The formation mechanism of drying process of β-Cu nanoparticles was discussed in detail. In addition, the TG/DSC study showed that the nano-sized β-Cu prepared by vacuum freeze-drying could be explored to be a promising additive for accelerating the thermal decomposition of AP.
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This work was financially supported by National Natural Science Foundation of China (Project No. 51206081) and Basic Product Innovation Technology Research Project of Explosives.
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Hao, G., Liu, J., Xiao, L. et al. Effect of drying methods on catalytic performance of nano-sized copper β-resorcylate. J Therm Anal Calorim 124, 1367–1374 (2016). https://doi.org/10.1007/s10973-015-5204-x
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DOI: https://doi.org/10.1007/s10973-015-5204-x