Publications by authors named "Juan L Arroyo"

This work reports the characterization and application of two promising nanocatalysts for the thermal decomposition of ammonium perchlorate (AP). To obtain these composite materials, magnetite nanoparticles (FeO NP) were functionalized with two different amine derivative groups, tertiary amine (FeO NP-A1) and quaternary amine. X-ray photoelectron spectroscopy and differential scanning calorimetry provided mechanistic insights into the thermal decomposition of AP.

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We show the synthesis and characterization of four heterobimetallic compounds derived from -indacene of general formula [{(CO)Mn}--Ic-{MCp*}] with M = Fe, Co, Ni, and Ru; = 0, 1+. The complexes reported here were characterized by H and C NMR, elemental analysis and FT-IR. Additionally, the X-ray crystal structure of [(CO)Mn--Ic-FeCp*] () and Mössbauer spectra are reported.

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The catalytic activity of nanoparticles of cobalt hydroxide supported on reduced graphene oxide, Co(OH)|rGO, was studied for the decomposition of ammonium perchlorate (AP), the principal ingredient of composite solid propellants. Co(OH)|rGO was synthesized by an reduction method, which avoided the application of extremely high temperatures and harsh processes. rGO stabilized the nanoparticles effectively and prevented their agglomeration.

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The catalytic activity of graphene oxide (GO), reduced graphene oxide (rGO), copper nanoparticles (CuNP) and rGO supported copper nanoparticles (rGO|CuNP) was investigated for the thermal decomposition of ammonium perchlorate (AP). GO was synthesized using a methodology based on hydrophilic oxidation, while an environmentally friendly and non-toxic reducing agent, l-ascorbic acid, was applied for the reduction of copper and GO. The supporting rGO reduced the mean size of the copper nanoparticles from approximately 6 to 2 Å due to the presence of stabilizing functional groups on the graphitic structure.

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