Chemical synthesis of nanocrystalline ZrO2-SnO2 composite powders

稀有金属（英文版）, 2004, 23(2): 182-184.

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1.Department of Inorganic Materials, School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China

2.Department of Inorganic Materials, School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China

3.Department of Inorganic Materials, School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China

4.Department of Inorganic Materials, School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China

5.Department of Inorganic Materials, School of Resources Processing and Bioengineering, Central South University, Changsha 410083, China

基金项目: 国家自然科学基金(50304014) Postgraduate Educational Innovation Engineering of Central South University(030702)

Chemical synthesis of nanocrystalline ZrO2-SnO2 composite powders

Keywords： inorganic materials

ZrO2-SnO2 composite nanoparticles were prepared by heating the hydrate precursors synthesized by the chemical co-precipitation reaction of ZrOCl2 and SnCl4. The precursors were examined by differential thermal analysis (DTA) and thermogravimetric analysis (TGA). The composite powder was characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM) and desorption isotherm (Barrett-Joyner-Halenda method). The average crystal size of the nanoparticle ranges from 15 to 30 nm for the sample containing 5%-25% ZrO2 (mass fraction). Most of the pores in the ZrO2-SnO2 nanoparticles are about 10-20 nm in diameter. The composite powder is promising for chemical sensors.

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Chemical synthesis of nanocrystalline ZrO2-SnO2 composite powders

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