ITO nano-powders prepared by microwave-assisted co-precipitation in aqueous phase
By using microwave-assisted co-precipitation in aqueous phase, adding surface activation agent PEG6000 into the mixture of InCl3 solution and SnCl4 solution, and dropping the ammonia solution with the density (volume ratio) of 1:0 to 1:4, ITO precursor was prepared at different reaction systeM temperatures of 35 ℃-85 ℃, then ITO nano-powder was obtained after it was calcinated at 800 ℃ for 1 h. The morphology of ITO nano-powder was characterized by SEM and its electrical conductivity was determined by conductivity meter. The effects of different temperatures and ammonia concentration in microwaveassisted reaction system on its morphology and electric conductivity were discussed. The experimental results indicate that with the dilution of the ammonia solution or the rise of reacting system temperature, the morphology of ITO particles is transformed from spherical to rod-like one with the decline of its electric conductivity. And the electric conductivity of ITO nano-powders with spherical morphology is higher than that of ITO nanopowders with rod-like morphology.
ITO nano-powder surface activation agent PEG-6000 microwave assistance co-precipitation aqueous phase
ZHU Xie-bin JIANG Tao QIU Guan-zhou HUANG Bai-yun
School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
国际会议
2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)
长沙
英文
752-756
2009-11-22（万方平台首次上网日期，不代表论文的发表时间）