本研究為探討用於固態火箭發動機中傳統用於觸媒的單一過渡金屬氧化物的氧化鐵，及複合過渡金屬氧化物的尖晶石對促進過氯酸銨熱分解的比較。其中氧化鐵與尖晶石的觸媒皆是使用改進型溶膠凝膠法的pechini-process來合成。作為氧化劑的過氯酸銨會與燃料環氧樹酯以及觸媒來混和並製成推進劑，藉由推進劑在大氣的線性燃燒率來驗證觸媒的優劣。此研究對於觸媒材料的分析使用SEM、EDS、XRD、BET、FTIR來觀察合成出來的金屬氧化物的表面特徵與顆粒大小及各元素在空間的分布與純度。
過氯酸銨對觸媒的熱分解分析藉由質子轉移的機制與TG/DSC的實驗結果來找到過氯酸銨的低溫、高溫熱分解溫度與藉由TG/FTIR來尋找產物與釋出的量，搭配質子轉移的機制可得知相較於氧化鐵，尖晶石在高溫分解區對於過氯酸銨N2O 、NO2的生成都有顯著的減少以儲存更多的能量來釋放。並由燃燒率的測試結果驗證氧化鐵與尖晶石的能力。

This study aims to compare the catalytic efficacy of traditional single transition metal oxides, specifically iron oxide, and complex transition metal oxides, namely spinel, in promoting the thermal decomposition of ammonium perchlorate used in solid rocket motors. Both the iron oxide and spinel catalysts were synthesized using the modified sol-gel Pechini process. Ammonium perchlorate, serving as the oxidizer, was mixed with the fuel epoxy resin and the catalysts to form the propellant. The efficacy of the catalysts was evaluated by measuring the linear burning rate of the propellant in an atmospheric environment. The analysis of the catalyst materials involved techniques such as SEM, EDS, XRD, BET, and FTIR to observe the surface characteristics, particle size, spatial distribution of elements, and purity of the synthesized metal oxides.
The thermal decomposition analysis of ammonium perchlorate on the catalysts was conducted using proton transfer mechanisms and TG/DSC experiments to determine the low and high-temperature decomposition temperatures of ammonium perchlorate. Additionally, TG/FTIR was used to identify the products and their release quantities. Compared to iron oxide, spinel significantly reduced the formation of N2O and NO2 in the high-temperature decomposition zone, thereby storing more energy for release. The burning rate test results further validated the capabilities of iron oxide and spinel catalysts.

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