Journal
DALTON TRANSACTIONS
Volume 40, Issue 2, Pages 340-343Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0dt01281e
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Funding
- National Natural Science Foundation of China [50821004]
- Program of Shanghai Subject Chief Scientist [09XD1404400]
- National Basic Research Program of China (973 Program) [2007CB607500]
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A convenient top-down method for preparation of Bi2Se0.3Te2.7 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 LixBi2Se0.3Te2.7 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.
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