Investigation the catalytic profile of Eu and Pr doped CeO2 nanoparticles for the thermal behavior of AP

Abstract

In these studies we report the catalytic proficiency of two Eu and Pr doped CeO 2 nanoparticles on the thermal behaviour of powder AP and CSPs samples. A co-precipitation method was used for synthesizing Eu and Pr doped CeO 2 nanoparticles and they were characterized by XRD, FTIR, and SEM with EDX. The catalytic proficiency of both Eu and Pr doped CeO 2 nanoparticles were investigated by utilizing TG-DSC technique. The FWO, KAS, and Starink methods were used to determine activation energies of all catalyzed AP and CSPs samples. The catalytic proficiency increased by addition of Eu and Pr doped CeO 2 nanoparticles and decomposition temperature decreased in the presence of catalyst. The activation energy decreased by the addition of Eu and Pr doped CeO 2 nanoparticles in AP and CSPs, the burning rate of CSPs found to increase by the addition of Eu and Pr doped CeO 2 nanoparticles. The Pr doped CeO 2 nanoparticles showed good catalytic efficiency on AP and CSPs that reduced the decomposition temperature around 70 °C for AP and 20 °C for CSPs. The activation energy of CSPs catalyzed by Pr doped CeO 2 nanoparticles reported 150.12, 147.60, and 146.83 kJ mol −1 by FWO, KAS, and Starink method respectively which decreases in existence of catalyst in CSPs.

Combination of 3-Aminofurazan-4-carboxylic Acid and Transition Metals to Prepare Functional Energetic Catalysts for Catalyzing the Decomposition of Ammonium Perchlorate

“…Composite solid propellant (CSP), a heterogeneous energetic composite material, has an important impact on the development of the defense and space industry as a power source for missiles, aircraft, and spacecraft. − The composition of CSP includes a solid oxidizer, a polymer binder, a metal fuel, and other functional components, with the solid oxidizer occupying most of the composition (40–90 wt %). , Ammonium perchlorate (AP) is the most widely used solid oxidant and is characterized by high oxygen content, high gas release, low sensitivity to external impact, compatibility with other components, and low cost. − However, the major challenge faced by the extensive application of AP is overcoming the too-high of a decomposition temperature, accompanied by unfocused heat release, low combustion rates, and wasted raw materials. − …”