文献类型：期刊文献

中文题名：QDTA/T/EGD/GC在线联用技术 ⅩⅡ.倍半氧化羧乙基锗(Ge-132)热分解反应历程的研究

英文题名：QDTA/T/EGD/GC On line Coupled Simultaneous Technique XII. Study of the Reaction Mechanism of Thermal Decomposition of Carboxyethylgermanium Sesquioxide (Ge 132)

作者：蔡根才[1,2,3];钱延龙[1,2,3];黄吉玲[1,2,3];黄家桢[1,2,3];沈明赓[1,2,3];钱义祥[1,2,3]

机构：[1]华东理工大学分析测试中心;[2]华东理工大学应用化学研究所;[3]上海石油化工研究院

年份：1997

卷号：23

期号：1

起止页码：114

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：EI(收录号：1997123977169);北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：差热分析;逸出气检测;气相色谱;锗有机化合物

外文关键词：carboxyethylgermanium sesquioxide; organic germanium (Ge 132); differential thermal analysis(DTA); evolved gas detector(EGD); gas chromatography(GC); on line coupled simultaneous technique

摘要：应用ＤＴＡ／Ｔ／ＥＧＤ／ＧＣ在线联用技术，对倍半氧化羧乙基锗（Ｇｅ－１３２）在Ｎ２气氛中的热分解反应历程（室温～９８０℃）进行了研究。依据ＤＴＡ／Ｔ／ＥＧＤ／ＧＣ提供的信息，分别对２２０℃、３５０℃、６５０℃、８００℃、９００℃、９８０℃等反应温度下的热分解残物，应用ＸＲＤ仪进行了物相鉴定，并测定了Ｇｅ－１３２在Ｎ２气氛中（室温～９３０℃）的ＴＧ／ＤＴＧ曲线。对ＤＴＡ曲线上显示的五个吸热效应和一个放热效应的性质作出了判断和验证，并对该热分解反应中逸出气的组成演变、残物中的Ｇｅ和ＧｅＯ２晶相的析出以及ＧｅＯ２在高温下转化为Ｇｅ的反应历程进行了探讨。
By applying DTA/T/EGD/GC on line coupled simultaneous technique, the reaction mechanism (ambient temperature￣990℃) of the thermal decomposition of Ge 132 in N 2 atmosphere was studied. According to the information provided by the DTA/T/EGD/GC curves, the substance phase of the thermal decomposition residue at reaction temperature 220℃,350℃,650℃,820℃,900℃ and 980℃ were identified respectively by using the X ray diffractometer. TG/DTG curves of Ge 132 was detected from ambient temperature to 930℃ in N 2 atmosphere. By analyzing the above information and data, the characteristic of five endothermal effects and one exothermal effect presented on the DTA curve is determined and verified. The variaton of composition of the reaction evolved gas produced by thermal decomposition reaction of Ge 132 at N 2 atmosphere, as well as the crystal releasing of Ge and GeO 2, and the reaction mechanism of transformed GeO 2 to Ge in the high temperature are discussed.