| BZCY-(Li/Na)2CO3新型复合电解质材料性能研究 |
| |
| 引用本文： | 王诚.BZCY-(Li/Na)2CO3新型复合电解质材料性能研究[J].稀有金属材料与工程,2017,46(1):231-236. |
| |
| 作者姓名： | 王诚 |
| |
| 基金项目： | 国家自然科学基金（U1462112, 21573122）；国际合作项目(2013DFG41460, 2013DFG60080) |
| |
| 摘 要： | BaZr0.1Ce0.7Y0.2O2.9（BZCY）电解质与氧离子传导型电解质相比，质子迁移的电导活化能较氧离子更低，低温下具有更高的离子电导率,在固体氧化物燃料电池低温话发展过程中，质子传导型电解质将会是一个很好的选择。本研究采用均相共沉淀法合成BaZr0.1Ce0.7Y0.2O2.9（BZCY）粉体，并制备不同组成的BZCY- (Li/Na)2CO3复合电解质，初步研究了其结构与性能。实验结果表明，复合电解质中碳酸盐以无定形形态存在，BZCY与碳酸盐发生反应生成BaCO3杂相；复合电解质电导率在空气中600℃和450℃时分别可达到0.095Scm-1和0.071Scm-1，加湿氢气中分别可达到0.126Scm-1和0.075Scm-1。以BZCY- 20%(Li/Na)2CO3为复合电解质的单电池表现出良好输出性能，在600℃和500℃时输出功率密度可达741mWcm-2和258mWcm-2。
|
| 关 键 词： | 低温固体氧化物燃料电池 BZCY-(Li/Na)2CO3复合电解质 结构分析 |
| 收稿时间： | 2014/10/25 0:00:00 |
| 修稿时间： | 2015/11/20 0:00:00 |
Properties of novel BZCY-(Li/Na)2CO3 composite electrolytes for IT-SOFC |
| |
| wang cheng.Properties of novel BZCY-(Li/Na)2CO3 composite electrolytes for IT-SOFC[J].Rare Metal Materials and Engineering,2017,46(1):231-236. |
| |
| Authors: | wang cheng |
| |
| Affiliation: | Tsinghua University |
| |
| Abstract: | Solid oxide proton conductors display lower activation energy than conventional oxygen-ion conductorswith a good development prospect. BaZr0.1Ce0.7Y0.2O2.9(BZCY)-(Li/Na)2CO3 composite electrolytes were prepared with BZCY powders synthesized by homogeneous coprecipitation. The structure and electrical properties of composite electrolytes were preliminarily studied. The conductivities of the composites reach 0.095Scm-1 at 600 oC and 0.071Scm-1 at 450oC in air, 0.126Scm-1 and 0.075Scm-1 in humidified hydrogen. The maximum power densities reach 741mWcm-2 at 600 oC and 258mWcm-2 at 450 oC. |
| |
| Keywords: | LT-SOFC BaZr0 1Ce0 7Y0 2O2 9 -(Li/Na)2CO3composite electrolytes Structural Characterization |
|
| 点击此处可从《稀有金属材料与工程》浏览原始摘要信息 |
|
点击此处可从《稀有金属材料与工程》下载全文 |
