CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Science, 1295 Dingxi Road, Shanghai, 200050, PR China.
Dalton Trans. 2011 Jan 14;40(2):340-3. doi: 10.1039/c0dt01281e. Epub 2010 Nov 17.
A convenient top-down method for preparation of Bi(2)Se(0.3)Te(2.7) crystalline nano-particles has been demonstrated. It contains two steps: (1) lithium was intercalated between the van der Waals bonded quintuple-layers by electrochemical process inside lithium ion batteries with precisely controlled speed and amount; (2) subsequent alcohol exposure of Li(x)Bi(2)Se(0.3)Te(2.7) to make the intercalated Li atoms explode like atom-scaled bombs and exfoliate the original micro/macro scaled materials into nano-scaled single crystalline particles with sizes around 10 nm. The intercalation process does not cost external energy, and can be scaled up by amplification of the intercalation devices.
一种方便的自上而下的方法被用来制备 Bi(2)Se(0.3)Te(2.7) 晶状纳米粒子。它包含两个步骤：（1）锂离子电池内通过电化学过程以精确控制的速度和数量在范德华键合的五重层之间插层锂离子；（2）随后将 Li(x)Bi(2)Se(0.3)Te(2.7)暴露于醇中，使插层的 Li 原子像原子级炸弹一样爆炸，将原始的微/宏观尺度的材料剥离成尺寸约为 10nm 的纳米级单晶颗粒。插层过程不消耗外部能量，并且可以通过插层设备的放大来规模化。
