| 一种确定固相反应机理函数的新方法——固态草酸镍(Ⅱ)二水合物脱水过程的非等温动力学 |
| A NEW METHOD DETERMINING MECHANISM FUNCTION OF SOLID STATE REACTION—THE NON-ISOTHERMAL KINETIC OF DEHYDRATION OF NICKEL(Ⅱ) OXALATE DIHYDRATE IN SOLID STATE |
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| 摘要: |
| 关键词: 双外推法 TG-DTA 非等温过程动力学 草酸镍 |
| 基金项目: |
| Abstract: The dehydration of nickel(Ⅱ) oxalate dihydrate in solid state was investigated by TG-DTA techniques. On the basis of Coats-Redfern′s and Ozawa′s integral equations, the double extrapolate method was suggested, i.e.heating rate Φ and proportion weight loss of a sample α were extrapolated to zero, respectively. Using comparision EΦ→0 with Eα→0 the kinetic mechanism was concluded to be nuclear producing and growing process (n=1.5). The intergral function of the mechanism is ［-ln(1-α)］1/1.5 and the corresponding kinetic parameters were determined. |
| Keywords: double extrapolated method TG-DTA non isothermal kinetic nickel oxalate |
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| 潘云祥,管翔颖,冯增媛,李秀玉,吴衍荪.一种确定固相反应机理函数的新方法——固态草酸镍(Ⅱ)二水合物脱水过程的非等温动力学[J].无机化学学报,1999,15(2):247-251. |
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