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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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掺杂Sc的CaZrO3的制备及电学性能
DOI: 10.3724/SP.J.1037.2011.00776, PP. 575-578
Keywords: 固体电解质,质子导体,掺杂,电化学阻抗谱,电导率
Abstract:
采用掺杂Sc2O3,通过固相反应法制备了CaZr1-xScxO3-α(x=0,0.1,0.15)材料.在610---850℃采用交流阻抗谱法测定了CaZr1-xScxO3-α的电导率及电导激活能,并对CaZrO3掺Sc及掺In样品的电学性能进行了比较.结果表明在610---850℃,CaZrO3的电导率为4.3×10$-19---1.4×10-6S/cm,CaZr1-xScxO3-α(x=0.1,0.15)的电导率为1.16×10-4---1.4×10-3S/cm,CaZr1-xInxO3-α(x=0.1,0.15)的电导率为0.34×10-4---4.33×10-4S/cm,且随着温度的升高而提高;掺杂能极大提高CaZrO3的电导率,并随着掺杂量的增加,电导激活能降低,电导率增加;温度及掺杂量相同时,掺Sc材料电导率明显高于掺In材料,说明掺Sc对提高材料的电导率更有效.
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