Zn^(2+)/CMK复合结构中微量元素的透射电镜分析

TEM Analysis of Microelement in Zn^(2+)/CMK Nanocompsite

以Zn^(2+)/CMK复合结构为例,通过对介孔碳(CMK)中微量掺杂的锌元素形态及微结构进行透射电子显微实验分析,发现低温下微量锌元素呈现为非晶化合态,Zn^(2+)离子态均匀分布在介孔载体上。在此基础上,经过高温煅烧反应后,均匀分布的Zn^(2+)离子反应形成为大小一致的Zn O纳米颗粒。这种分布均匀、大小一致的复合结构改善了其在锂离子电池应用中的性能表现。

Much research work was carried to improve material performance by element doping. The character of doped microelement, including size, dispersion and microstructure, can be tested by transmission electron microscopy （TEM）. For Zn2＋/CMK nanocompsite the Zn2＋ ions exist as non-crystal dispersed after high temperature treatment they transform into small-size ZnO nanocrystals, and different types of characters benefit doped Zn microelements can be tested directly by TEM, EDS an for improving the performance as anode material in Li-ion battery. in CMK at low temperature, and distribute uniformly in CMK. The d STEM, and the microstructure