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Thermal,Stability, Electrical Conductivity and Gas-Sensitivity of CdO Doped SnO_2 Nanometer Powder

Zhang Tianshu;Shen Yusheng;Zhang Ruifang(Department of Materials Soience and Engineering,University of Science and Technology of China , Hefei, 230026,China)  
In this paper, effects of CdO doping onthermal stability,electrical conductivity and gassensitivity of SnO_2 nanometer powder have beenstudied.It appears that only small amount of CdO isadded into SnO_2(Cd/Sn0. 05)and most of CdO israther well dispersed on the surface of SnO_2 powdersas amorphous state, The former is responsible forthe conductivity of CdO doped SnO_2 and the latterimproves its thermal stability. Much higher gassensitivity has been achieved because of CdO dopingand minute crvstallite size(6nm).
【Fund】: 国家自然科学基金
【CateGory Index】: TB383
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