Even though ammonium perchlorate (AP) is universal oxidizer; its initial decomposition is an endothermic process. This feature could render high burning rate regime. Ferric oxide particles are candidate catalyst for AP decomposition. This study reports on sustainable fabrication of colloidal ferric oxide particles. Ferric oxide particles demonstrated stable colloidal suspension with zeta value of 38.5 mV. TEM micrographs revealed mono-dispersed particles of 3 nm average particle size. XRD diffractogram demonstrated highly crystalline structure. Ferric oxide nanoparticles were coated with AP particles via co-precipitation technique. The efficiency of ferric oxide particles as nano-catalyst for AP was evaluated using DSC and TGA. Ferric oxide particles reduced AP initial endothermic decomposition by 40%. The following two exothermic decomposition peaks were combined together into one single peak with an increase in total heat release by 47.5%. These novel catalytic features can extend applications of ferric oxide particles in catalyzed combustion reactions.

中文翻译：

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氧化铁胶体：新型固体推进剂纳米催化剂

即使高氯酸铵（AP）是通用氧化剂；它的初始分解是一个吸热过程。此功能可能会导致高燃烧速率状态。氧化铁颗粒是AP分解的候选催化剂。该研究报告了胶体三氧化二铁颗粒的可持续制造。三氧化二铁颗粒显示出稳定的胶体悬浮液，ζ值为38.5 mV。TEM显微照片显示平均粒径为3 nm的单分散颗粒。XRD衍射图证明高度结晶的结构。通过共沉淀技术将三氧化二铁纳米粒子涂有AP粒子。使用DSC和TGA评估了三氧化二铁颗粒作为AP的纳米催化剂的效率。三氧化二铁颗粒使AP的初始吸热分解降低了40％。以下两个放热分解峰合并为一个峰，总放热增加47.5％。这些新颖的催化特性可以扩展氧化铁颗粒在催化燃烧反应中的应用。