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首页> 外文期刊>Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems >THE ROLE OF COPPER COBALTITE SPINEL, CUXCO3-XO4 DURING THE THERMAL DECOMPOSITION OF AMMONIUM PERCHLORATE
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THE ROLE OF COPPER COBALTITE SPINEL, CUXCO3-XO4 DURING THE THERMAL DECOMPOSITION OF AMMONIUM PERCHLORATE

机译：铜钴尖晶石CUXCO3-XO4在高氯酸铵热分解过程中的作用

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摘要

The catalytic effect of copper cobaltite, CuxCo3-xO4 spinel in the range (0 less than or equal to x less than or equal to 3) on the thermal decomposition of ammonium perchlorate (AP) has been studied using thermogravimetry (TG) and differential thermal analysis (DTA). The results revealed that the addition of CuO (x = 0.1 or 0.3) led to an observable increase in the catalytic activity of Co3O4 towards the decomposition of AP, while the activity of CuO decreases at x = 2.9 and 2.7. The creation of more holes within the p-type semiconducting catalyst is responsible for enhancing the decomposition of AP. In contrast, the catalysts containing copper cobaltite spinels are less active than the doped catalysts. The active redox sites established in these spinels, Co3+/Co2+, Cu2+/Cu+ and Co3+/Cu+, are not as efficient as holes in promoting electron exchange with the perchlorate ions. [References: 20]
机译：使用热重分析（TG）和差热分析研究了铜钴矿CuxCo3-xO4尖晶石在（0小于等于x小于等于3）范围内对高氯酸铵（AP）热分解的催化作用。分析（DTA）。结果表明，添加的CuO（x = 0.1或0.3）导致Co3O4对AP分解的催化活性明显增加，而CuO的活性在x = 2.9和2.7时降低。在p型半导体催化剂中产生更多的空穴有助于增强AP的分解。相反，含有铜钴尖晶石的催化剂的活性低于掺杂的催化剂。在这些尖晶石中建立的活性氧化还原位点Co3 + / Co2 +，Cu2 + / Cu +和Co3 + / Cu +在促进与高氯酸根离子进行电子交换方面不如空穴有效。 [参考：20]

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