Study on thermal decomposition of copper(II) acetate monohydrate in air
Study on thermal decomposition of copper(II) acetate monohydrate in air
复制标题
一水乙酸铜(II)在空气中热分解的研究
DOI：
10.1007/s10973-011-1454-4
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发表时间：
2012-02-01
影响因子：
4.4
通讯作者：
Li, Shufen
中科院分区：
文献类型：
--
作者：
Lin, Zhenkun;Han, Donglin;Li, Shufen
用TG/DTG、DTA、原位FTIR和X射线衍射法研究了一水合醋酸铜(CuAc2中心点H2O)在500A℃空气中的热分解过程。实验结果表明，CuAc_2中心点水在500A℃空气中的热分解主要包括三个步骤。CuAc2中心点H2O在168A℃以下脱水；CuAc2在168-302A℃分解为初始固相产物和挥发产物；初始固相产物铜和Cu2O在302-500A℃在空气中被氧化为CuO。醋酸铜过氧化物系在100-150A℃之间形成，这些过氧化物的脱水导致168℃以上CuAc2中心点H2O的存在。提出了这三个步骤中涉及的详细反应，描述了CuAc2中心点H2O在空气中热分解的完整机理和过程。
The thermal decomposition of copper(II) acetate monohydrate (CuAc2 center dot H2O) under 500 A degrees C in air was studied by TG/DTG, DTA, in situ FTIR and XRD experiments. The experimental results showed that the thermal decomposition of CuAc2 center dot H2O under 500 A degrees C in air included three main steps. CuAc2 center dot H2O was dehydrated under 168 A degrees C; CuAc2 decomposed to initial solid products and volatile products at 168-302 A degrees C; the initial solid products Cu and Cu2O were oxidized to CuO in air at 302-500 A degrees C. The copper acetate peroxides were found to form between 100 and 150 A degrees C, and the dehydration of these peroxides resulted in the presence of CuAc2 center dot H2O above 168 A degrees C. The initial solid products were found to be the admixture of Cu, Cu2O, and CuO, not simply the single Cu2O as reported before. Detailed reactions involved in these three steps were proposed to describe the complete mechanism and course of the thermal decomposition of CuAc2 center dot H2O in air.