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Formation Process of FeCl_3-NiCl_2-Graphite Intercalation Compounds

机译:FeCl_3-NiCl_2-石墨插层化合物的形成过程

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The intercalation reaction of NiCl_2 from the mixture of FeCl_3 and NiCl_2 has been studied by using natural graphite at a wide range of residence times from 1 to 24 h. The microstructure changes of reaction products were investigated by XRD, SEM, and EDS, and the formation of ternary FeCl_3-NiCl_2-GICs was confirmed. In the process FeCl_3 was found to be intercalated preferentially at the initial stage of the intercalation, and set up the framework of the stage domain of GICs. Then NiCl_2 intercalated along the channels cut by FeCl_3. The diffusion rate and distribution uniformity of NiCl_2 controlled the rate of the intercalation reaction and the ternary grade of the FeCl_3-NiCl_2-GICs.
机译:通过使用天然石墨在1至24 h的宽停留时间范围内研究了FeCl_3和NiCl_2的混合物中NiCl_2的插层反应。用XRD,SEM和EDS对反应产物的微观结构进行了研究,证实了三元FeCl_3-NiCl_2-GIC的形成。在该过程中,发现FeCl_3在插入的初始阶段优先进行插入,并建立了GIC的阶段域框架。然后,NiCl_2沿着FeCl_3切割的通道插入。 NiCl_2的扩散速率和分布均匀性控制了FeCl_3-NiCl_2-GICs的插层反应速率和三元级。

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