Abstract This work assessed the pyrolysis of a well-established gas generating agent consisting of a mixture of guanidine nitrate (GN) with basic copper nitrate (BCN), using thermogravimetry-differential scanning calorimetry in conjunction with high resolution mass spectrometry (TG/DSC/HRMS). This instrumentation simultaneously determined mass changes and heat flow, and also permitted evaluation of evolved gases on an accurate mass basis. Fragmentation ratio correction was used to analyze the MS data acquired via electron ionization. GN/BCN mixtures were found to undergo pyrolysis to evolve H2O, N2, NO , CO2 and N2O. Using HRMS, species having similar masses, such as CO2 and N2O, CO and N2, and NH3 and OH , were successfully distinguished. The thermal analysis data and the gas evolution results allowed a pyrolysis mechanism to be proposed. In this mechanism, a copper(II) complex obtained from the BCN catalytically decomposes NH3 generated from the GN to produce N2 and H2O. The pyrolysis of a mixture of GN and BCN thus provides a synergistic effect that increases the heat and gas output.

中文翻译：

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使用高分辨质谱量热法分析硝酸胍/碱式硝酸铜混合物的热特性和气态产物

摘要 本研究使用热重-差示扫描量热法和高分辨率质谱法 (TG/DSC/人力资源管理系统）。该仪器同时确定质量变化和热流，并且还允许在精确质量基础上评估逸出气体。碎片比校正用于分析通过电子电离获得的 MS 数据。发现 GN/BCN 混合物经历热解以放出 H2O、N2、NO、CO2 和 N2O。使用 HRMS，成功区分了具有相似质量的物种，例如 CO2 和 N2O、CO 和 N2、NH3 和 OH。热分析数据和气体析出结果允许提出热解机制。在这种机制中，从 BCN 获得的铜 (II) 络合物催化分解从 GN 产生的 NH3，生成 N2 和 H2O。因此，GN 和 BCN 混合物的热解提供了增加热量和气体输出的协同效应。