Abstract

Multiwalled carbon nanotube (MWNT) supported Bi 2Te 3 nanoparticle heterostructures were firstly synthesized using a microwave-polyol method assistant with titration. The microwave heating process was adopted to yield nanoscale Bi 2Te 3 by accelerating chemical reaction rate. And the titration of Bi 2Te 3 precursors was conducted to make the nanoparticles grow onto surfaces of MWNTs easily. The general morphology of resulting composites is hexagonal Bi 2Te 3 nanoplates and their aggregates attached on surfaces of MWNTs randomly. When the diameter of MWNT is rather shorter, Bi 2Te 3 crystallites are encapsulated into inner cores of nanotubes.

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