Previous work has demonstrated the accumulation of negative charges on the anode side of the ion conductor Rb₂Ti₂O₅ when placed under voltage between two metallic electrodes. The nature of these accumulated species and of the conducting ions is investigated by a combination of thermogravimetric analysis (TGA), Xray diffraction, dielectric response measurements, charge distribution, IR absorption spectroscopy and nuclear magnetic resonance (NMR) measurements. TGA shows that the as-grown samples have incorporated a considerable amount of water (up to 0.35 H₂O per unit cell) that is eliminated at two different temperature thresholds. However, no significant variation of the lattice parameters is observed by X-Ray diffraction. A strong dependence of the dielectric properties and of the accumulated charge density on the water content is demonstrated. All the results point towards a mechanism of proton and hydroxide conduction associated with a change of valence for titanium.

先前的工作表明，当置于两个金属电极之间的电压下时，负电荷在离子导体Rb ₂ Ti ₂ O ₅的阳极侧累积。通过热重分析（TGA），X射线衍射，介电响应测量，电荷分布，IR吸收光谱法和核磁共振（NMR）测量相结合，研究了这些累积的物质和导电离子的性质。TGA表明，所生长的样品中已经掺入了大量的水（最高0.35 H ₂每单位电池O），这是在两个不同的温度阈值下消除的。然而，通过X射线衍射未观察到晶格参数的显着变化。证明了介电性质和累积电荷密度对水含量的强烈依赖性。所有结果都表明了质子和氢氧化物传导与钛化合价变化有关的机理。