Due to the higher hydrogen solubility and diffusivity, gadolinium sesquioxide (Gd₂O₃) could be expected as a proton conductive material. In this study, monoclinic Gd₂O₃ was used to evaluate the possible proton conductivity in Ar (${\sigma }_{\text{Ar}}$), Ar+4% H₂ (${\sigma }_{{\mathrm{H}}_2}$), Ar+4% D₂ (${\sigma }_{{\mathrm{D}}_2}$), Ar+H₂O (${\sigma }_{{\mathrm{H}}_2\mathrm{O}}$), Ar+D₂O (${\sigma }_{{\mathrm{D}}_2\mathrm{O}}$), and O₂ (${\sigma }_{{\mathrm{O}}_2}$) atmospheres in the temperature range from 500°C to 1000°C, to understand its possible application in the DT fuel system of a nuclear fusion reactor. At all temperatures, the conductivity ${\sigma }_{{\mathrm{D}}_2}$ was lower than that of the ${\sigma }_{{\mathrm{H}}_2}$. Similarly, the ${\sigma }_{{\mathrm{D}}_2\mathrm{O}}$ was always lower than that of the ${\sigma }_{{\mathrm{H}}_2\mathrm{O}}$. The isotope dependence was appreciable at higher temperatures, indicating that Gd₂O₃ is a proton-conductive oxide at elevated temperatures. However, much improvement is required for the use of Gd₂O₃ in the DT fuel recovery, analysis, and purification system of fusion reactors.

由于较高的氢溶解度和扩散性，倍半氧化g（Gd ₂ O ₃）有望作为质子传导材料。在这项研究中，单斜Gd ₂ O ₃用于评估Ar中可能的质子电导率（${\sigma }_{\text{氩气}}$），Ar + 4％H ₂（${\sigma }_{{\mathrm{H}}_{\mathrm{2个}}}$），Ar + 4％D ₂（${\sigma }_{{\mathrm{d}}_{\mathrm{2个}}}$），Ar + H ₂ O（${\sigma }_{{\mathrm{H}}_{\mathrm{2个}}\mathrm{Ø}}$），Ar + D ₂ O（${\sigma }_{{\mathrm{d}}_{\mathrm{2个}}\mathrm{Ø}}$）和O ₂（${\sigma }_{{\mathrm{Ø}}_{\mathrm{2个}}}$）温度范围在500°C至1000°C之间，以了解其在核聚变反应堆DT燃料系统中的可能应用。在所有温度下，电导率${\sigma }_{{\mathrm{d}}_{\mathrm{2个}}}$ 低于 ${\sigma }_{{\mathrm{H}}_{\mathrm{2个}}}$。同样，${\sigma }_{{\mathrm{d}}_{\mathrm{2个}}\mathrm{Ø}}$ 总是低于 ${\sigma }_{{\mathrm{H}}_{\mathrm{2个}}\mathrm{Ø}}$。同位素依赖性在较高温度下是明显的，表明Gd ₂ O ₃在升高的温度下是质子传导性氧化物。但是，在聚变反应堆的DT燃料回收，分析和纯化系统中使用Gd ₂ O ₃需要进行很大的改进。