立方钙钛矿结构材料是理想的透氧膜材料之一,通过对其A、B位不同离子的掺杂可以提高材料的透氧率,改善材料在低氧条件下的结构稳定性.材料的晶胞自由体积、金属-氧平均键强、关口尺寸是影响材料氧离子电导的主要因素,而容差因子、金属一氧平均键强是影响材料结构稳定性的主要因素.本文介绍了钙钛矿结构的特点及其畸变,提出了掺杂元素的选择策略,并详细阐述了透氧膜材料的研究进展.
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