The electrical conductivity of nickel (2 wt %)-doped BaZr_0.1Ce_0.7Y_0.1Yb_0.1O_3−δ (BZCYYb) acceptor-doped perovskite oxide was evaluated under air and a 1% H₂ atmosphere. The partial conductivity was calculated from the total conductivity and the transport number of each carrier (t_H⁺, t_O^2–, and t_h⁺) obtained using the concentration cell method. Its correlation with the dissolution state of the protons in the oxide as studied by in situ diffuse reflection Fourier transform infrared spectroscopy is discussed. When the concentration of protons that dissolved in BZCYYb-Ni was high, the proton partial conductivity was also high. An increase in hole conductivity in the high-temperature region in an air atmosphere was observed, suggesting that dissociation of protons strongly correlates with such a dominant carrier change. The dissociation of protons should be determined by the stability of protons in the oxide by the interaction with the lattice oxygen, and it was suggested that the dissolution state of protons can be controlled by modifying such stability in the oxide.

中文翻译：

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掺镍BaZr _0.1 Ce _0.7 Y _0.1 Yb _0.1 O _3−δ中溶解质子与导电性能的相关性

在空气和1％H ₂气氛下，评估了掺杂镍（2 wt％）的BaZr _0.1 Ce _0.7 Y _0.1 Yb _0.1 O _3-δ（BZCYYb）受主钙钛矿氧化物的电导率。由总电导率和每种载流子的迁移数（t _{H ⁺}，t _{O ^2–}和t _{h ⁺}）使用浓缩池方法获得。通过原位漫反射傅里叶变换红外光谱技术研究了它与质子在氧化物中的溶解状态的相关性。当溶解在BZCYYb-Ni中的质子浓度高时，质子部分电导率也高。观察到在大气中的高温区域中空穴电导率的增加，表明质子的解离与这种主要的载流子变化强烈相关。质子的解离应该由质子在与晶格氧的相互作用中在氧化物中的稳定性来确定，并且建议可以通过改变这种在氧化物中的稳定性来控制质子的溶解状态。