摘要
Iwahara于1981年首次发现以Yb^3＋稀土离子在母体SrCeO3的Ce（Ⅳ）位置掺杂的钙钛矿型SrCe0.95Er0.05O3-α陶瓷，在600～1000℃高温下、水蒸气或含氢气气氛中具有良好的质子导电性。在此之后，很多钙钛矿型质子导电性陶瓷相继被报道。如：掺杂的BaCeO3，CaZrO3，SrZrO3，BaZrO3，LnScO3（Ln=La，Nd，Sm，Gd）等复合氧化物在上述条件下亦具有良好的质子导电性。
SrCe0.95Er0.05O3-α ceramic of a single orthorhombic phase of perovskite-type SrCeO3 was prepared by high-temperature solid state reaction. Using the ceramic as solid electrolyte and porous platinum as electrodes, the measurements of conductivities and ionic transport numbers on SrCe0.95Er0.05O3-α ceramic were performed by using electrochemical methods in the temperature range of 600～1 000℃ in wet hydrogen, dry air and wet air, respectively. The results indicate that the sample is a pure protonic conductor with a maximal conductivity of 0.01 S·cm^-1 in wet hydrogen, a mixed conductor of oxide-ion and hole in dry air, and a mixed conductor of proton, oxide-ion and hole in wet air.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2006年第4期738-742,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.20171034)
苏州大学"211工程"基金资助项目。
