| 纳米三氧化二钴低温热容和热力学性质的研究 |
| Low-Temperature Heat Capacity and Thermodynamic Functions of Nano Co2O3 |
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| 摘要: |
| 关键词: 纳米Co2O3 热容 热力学函数 |
| 基金项目: |
| Abstract: The isobaric molar heat capacities of nano Co2O3 were determined by an adiabatic calorimeter in the temper-ature range from 78 to 350K. No phase transition takes place in this temperature range. The relationship of Cp，m with respect to thermodynamic temperature T was established as Cp，m=-11.998X3-9.6431X2+63.478X+81.291(J·K-1·mol-1) ， where X=(T-201.903)/121.535， the correlation coefficient R2=0.9996. Ac-cording to this relationship and the relationships between thermodynamic functions， the thermodynamic functions of nano Co2O3 relative to the standard temperature of 298.15K were derived based on the measured heat capacity data. The average grain size of the studied nano Co2O3 sample was determined to be 12nm by TEM. |
| Keywords: nano Co2O3 heat capacity thermodynamic function |
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| 全文下载次数: 1897 |
| 南照东,谭志诚,蓝孝征,孙立贤,关荐伊.纳米三氧化二钴低温热容和热力学性质的研究[J].无机化学学报,2003,19(3):325-328. |
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