Abstract Ammonium dinitramide (ADN) is a green, energetic and oxygen rich molecule, developed to replace the commonly used oxidizer ammonium perchlorate (AP). On combustion ADN produces relatively environmental-friendly species such as H2O, NO2, N2O, NO etc., compared to HCl, Cl2, CO2, CO, H2, H2O, N2 and highly reactive chlorine species produced by AP combustion. The ADN synthesized in our laboratory was dissolved in deionized water to prepare aqueous ADN solutions (aq. ADN). The thermal decomposition of solid ADN and aq. ADN were studied and the products of decomposition are identified using a thermogravimetric analyser hyphenated with a FTIR instrument. Nano CuO catalyst was synthesized and aq. ADN was decomposed over the nanocatalyst and the catalytic decomposition mechanism is also elucidated. The study shows that, the condensed phase decomposition of aq. ADN is influenced by the CuO nanocatalyst leading to the generation of higher concentrations of NO2, which autocatalyzes the remaining ADN decomposition.

中文翻译：

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热光谱法阐明二硝胺水溶液催化分解机理

摘要 二硝胺 (ADN) 是一种绿色、充满活力和富氧的分子，旨在取代常用的氧化剂高氯酸铵 (AP)。与 AP 燃烧产生的 HCl、Cl2、CO2、CO、H2、H2O、N2 和高活性氯物种相比，ADN 在燃烧时会产生相对环境友好的物种，例如 H2O、NO2、N2O、NO 等。在我们实验室合成的 ADN 溶解在去离子水中以制备 ADN 水溶液（aq. ADN）。固体 ADN 和 aq 的热分解。研究了 ADN，并使用与 FTIR 仪器联用的热重分析仪来鉴定分解产物。纳米CuO催化剂的合成和水溶液。ADN在纳米催化剂上被分解，并且还阐明了催化分解机制。研究表明，aq 的凝聚相分解。ADN 受 CuO 纳米催化剂的影响，导致产生更高浓度的 NO2，从而自动催化剩余的 ADN 分解。