Citation:
SONG Wei-Ming, HU Qi-Lin, FANG Jun-Zhuo, NI Gang, LUO Min. PEG-assisted Synthesis of Tin-doped Indium Oxide Nanopowders by Sol-gel Method[J]. Chinese Journal of Applied Chemistry,
;2008, 25(4): 464-467.
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The water-based sol-gel method was applied to synthesize indium tin oxide (ITO) nanoparticles with m(In):m(Sn)=90:10 with polyethylene glycol (PEG) 20000 as a dispersant.The pyrolytic behavior of the dried gel and formation process of ITO were investigated by TG-DTA and XRD.The particle morphology,specific surface area and crystal size of the as-synthesized ITO powders were investigated by TEM and BET.The results indicate that monodispersed ITO nanopowers were synthesized after dried gel was calcined at 500℃.The as-synthesized sample was cubic phase In2O3 structure with a special surface area of 50 m2/g and a particle diameter of (15±5) nm,which is in good agreement with the observation of TEM,XRD and BET.The proposed technique has a significant potential for the commercial production of ITO nanopowders.
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Keywords:
- Indium tin oxide,
- PEG-assisted sol-gel method,
- Nanoparticle
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