Incorporation of water into tin-substituted BaIn_1-xSn_xO_3-δ (x = 0.1-0.3) is shown to influence crystal structure at room temperature, structural transformations at high temperatures and ionic transport properties of the materials. Increasing tin content stabilizes oxygen vacancy-disordered perovskite-type phase, which together with large changes of the unit cell volume occurring during hydration and dehydration processes, result in a complex structural behavior, as documented by high-temperature X-ray diffraction and thermogravimetric studies. Impedance spectroscopy measurements at elevated temperatures (350–800 °C) revealed very high proton conductivity in BaIn_0.8Sn_0.2O_3-δ, exceeding 1.1·10⁻³ S cm⁻¹ at 500 °C, with high values of the transference number in wet air. At the same time, relaxation kinetics of the electrical conductivity showed a monotonous nature, which indicates negligible component of the electronic hole conductivity in the hydrated material. The oxides are extremely moisture-sensitive, which results in a significant mechanical stability problems, affecting possibility to prepare electrolyte membranes.

已表明将水掺入锡取代的BaIn _1-x Sn _x O3 _-δ（x = 0.1-0.3）中会影响室温下的晶体结构，高温下的结构转变以及材料的离子迁移性能。锡含量的增加稳定了氧空位无序的钙钛矿型相，这与水合和脱水过程中发生的晶胞体积大变化一起，导致了复杂的结构行为，高温X射线衍射和热重研究证明了这一点。 。高温（350–800°C）下的阻抗谱测量表明BaIn _0.8 Sn _0.2 O3 _-δ中的质子传导率非常高，在500°C时超过1.1·10 ^-3  S cm ^-1，在湿空气中的转移数很高。同时，电导率的弛豫动力学表现出单调性，这表明在水合材料中电子空穴电导率的成分可忽略不计。所述氧化物对水分非常敏感，这导致显着的机械稳定性问题，从而影响制备电解质膜的可能性。