期刊
APPLIED CLAY SCIENCE
卷 48, 期 3, 页码 368-374出版社
ELSEVIER
DOI: 10.1016/j.clay.2010.01.008
关键词
Conductive powders; Kaolin; Antimony-doped tin oxide (Sb-SnO2); Controlled coating; Resistivity
资金
- National Natural Science Foundation of China [50774095]
- National High-Tech Research and Development Program of China (863 Program) [2007AA06Z121]
- National Key Technology Research & Development Program [2008BAE60B06]
- Mittal Innovative Project [08MX20]
Composite conductive powders of kaolin coated with antimony-doped tin oxide nanoparticles (Sb-SnO2/kaolin, SSK) were prepared by co-precipitation. The samples were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electronic microscopy (SEM), transmission electron microcopy (TEM), high-resolution TEM (HRTEM) and energy-dispersive X-ray spectrometry (EDS). Effects of pH value, hydrolysis temperature, kaolin content, content of doped antimony, calcination temperature and time on the resistivity of SSK were studied under the optimum experimental conditions, the resistivity was less than 10 Omega.cm. The rod-like kaolinite particles were coated with a layer of 35 nm thickness of well-crystallized, dense and uniform antimony-doped tin oxide (Sb-SnO2). A possible mechanism for coating of Sb-SnO2 nanoparticles on the surface of kaolin rods is proposed. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据