O. S. Bervitskaya, A. Yu. Stroeva, B. A. Ananchenko, V. A. Ichetovkina, A. V. Kuzmin
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引用次数: 0
摘要
摘要 具有混合离子导电性和电子导电性的类透辉石材料被认为是质子陶瓷电化学器件的有前途的功能材料。本研究首次获得并研究了固溶体系列 La0.9Sr0.1Sc1 - xMnxO3 - δ，其中 B 阳离子位置上的钪离子逐渐被锰离子取代。所获得的材料通过了 X 射线相分析、扫描电子显微镜和能量色散显微分析的认证。阐明了掺杂剂对所研究材料烧结能力和形貌的影响。采用直流四探针法研究了固溶体的导电性与温度和气相湿度的关系。
Synthesis and Physico-Chemical Properties of La0.9Sr0.1Sc1 – xMnxO3 – δ Ceramic Materials with Mixed Electronic and Ionic Conductivity
Perovskite-like materials with mixed ionic and electronic conductivity are considered as promising functional materials for proton-ceramic electrochemical devices. In the present work, a solid-solution series La0.9Sr0.1Sc1–xMnxO3 – δ, where scandium ions in the B-cation position are gradually replaced by manganese ions, was obtained and studied for the first time. The obtained materials were certified by X-ray phase analysis, scanning electron microscopy, and energy-dispersive microanalysis. The dopant influence on the studied materials’ sintering ability and morphology is elucidated. The electrical conductivity of the solid solutions as a function of temperature and gas phase humidity was investigated by the dc four-probe method.
期刊介绍：
Russian Journal of Electrochemistry is a journal that covers all aspects of research in modern electrochemistry. The journal welcomes submissions in English or Russian regardless of country and nationality of authors.
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