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低热固相法合成纳米(NH4)3PMo12O40·4H2O及其机理的研究
Preparation and Mechanistic Studies of the Formation of (NH4)3PMo12O40·4H2O by a Solid-State Reaction at Low Heating Temperature
【摘要】 通过低热固相反应合成了纳米(NH4)3PMo12O40·4H2O,XRD、31PNMR研究发现,在此固相反应的4个步骤中(扩散,反应,成核,生长),反应的速率控制步骤是产物的成核.
【Abstract】 Nano-size solid (NH4)3PMo12O40·4H2O was prepared from a solid-state reaction at low heating temperature. The reaction mechanism was studied by X-ray diffraction (XRD), ()3P MAS NMR. Among four steps in this solid-state reaction (diffusion, reaction, nucleation, and growth), the results show that the rate-determining step for the formation of (NH4)3PMo12O40·4H2O is the nucleation of the product.
【关键词】 固相反应;
机理;
(NH4)3PMo12O40·4H2O;
纳米;
【Key words】 solid-state reaction; mechanism; (NH4)3PMo12O40·4H2O; nano size;
【Key words】 solid-state reaction; mechanism; (NH4)3PMo12O40·4H2O; nano size;
【基金】 国家自然科学基金资助项目(90101028);江苏省科技厅资助项目(BG20011022)
- 【文献出处】 复旦学报(自然科学版) ,Journal of Fudan University , 编辑部邮箱 ,2003年06期
- 【分类号】O614
- 【被引频次】1
- 【下载频次】134