| 纳米Co_2TiO_4的热稳定性 |
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| 引用本文： | 汪春昌.纳米Co_2TiO_4的热稳定性[J].合肥工业大学学报(自然科学版),1999(4). |
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| 作者姓名： | 汪春昌 |
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| 作者单位： | 合肥工业大学理学院 |
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| 摘 要： | 藉助于Ｘ－射线衍射（ＸＲＤ）谱和热重（ＴＧ）分析，研究了纳米Ｃｏ２ＴｉＯ４的热稳定性。结果表明在第一次升温测量的差示扫描量热（ＤＳＣ）曲线上存在两个吸热峰（Ｐ１，Ｐ２峰）和一个放热峰（Ｐ３峰），再次升温测量时，这些峰均消失了。研究表明，这些峰分别起因于物理脱附、化学脱附、相变和晶粒长大。
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| 关 键 词： | 纳米材料 吸附 脱附 |
Thermal stability of nanosized Co 2TiO 4 |
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| WANG Chun,chang.Thermal stability of nanosized Co 2TiO 4[J].Journal of Hefei University of Technology(Natural Science),1999(4). |
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| Authors: | WANG Chun chang |
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| Abstract: | With the help of X ray diffractional (XRD) spectra and thermal gravimetric (TG) analysis,an investigation of thermal stability of nanosized Co 2TiO 4 was made in this paper.The results showed that there were two endothermic peaks ( P 1,P 2 peaks) and one exothermic peak ( P 3 peak) in differential scanning calorimetry(DSC) curve during the first heating run and these peaks disappeared during the second heating run.It was revealed that these peaks were caused,respectively,by physical desorption,chemical desorption and phase transformation and grain growth. |
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| Keywords: | nanosized materials adsorption desorption |
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