Correlation between Protonic Conductivity and Structure of Phosphate Glasses for Intermediate Temperature Fuel Cells
Correlation between Protonic Conductivity and Structure of Phosphate Glasses for Intermediate Temperature Fuel Cells
复制标题
中温燃料电池用磷酸盐玻璃质子电导率与结构的相关性
DOI：
10.1149/05027.0187ecst
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
T. Kasuga
中科院分区：
文献类型：
--
作者：
H. Sumi;Y. Fujishiro;T. Oine;T. Kasuga
我们测量了BaOZnO-P_2 O_5玻璃的NMR、拉曼光谱和交流阻抗谱。这些玻璃的短程有序是基于偏磷酸盐（QP 2）结构。BaO-ZnO-P2 O 5三元玻璃的OPO键被部分破坏，移动的质子浓度增加。30mol%ZnO-10mol%BaO-60mol%P_2O_5玻璃在200 ℃时的质子电导率为2× 10 ~（-7）S/cm。不同配位数阳离子的共掺杂可以有效地提高磷酸盐玻璃的质子导电性。
We measured NMR, Raman spectra and AC impedance for BaOZnO-P2O5 glasses. The short-range order of these glasses was based on metaphosphate (QP 2) structure. A part of OPO bonding was broken and the mobile proton concentration increased for ternary BaO-ZnO-P2O5 glasses. The protonic conductivity was 2× 10-7 S/cm for 30 mol% ZnO-10 mol% BaO-60 mol% P2O5 glass at 200 o C. Co-doping of the cations with different coordinate numbers is effective to improve the protonic conductivity for phosphate glasses.