| BaZrO3／NaOH复相质子导体的制备与性能 |
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| 引用本文： | 彭珍珍,郭瑞松,尹自光,李娟,蔡舒.BaZrO3／NaOH复相质子导体的制备与性能[J].稀有金属材料与工程,2007,36(A02):596-598. |
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| 作者姓名： | 彭珍珍 郭瑞松 尹自光 李娟 蔡舒 |
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| 作者单位： | 天津大学先进陶瓷与加工技术教育部重点实验室,天津300072 |
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| 基金项目： | 天津市自然基金（06YFJMJC02900） |
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| 摘 要： | Y掺杂的BaZrO3高温质子导体具有良好的化学稳定性，但较低的电导率影响了其在燃料电池领域的应用。本研究以NaOH为复相添加剂，ZnO为烧结助剂，中温烧结制备了BaZrO3／NaOH复相质子导体，采用直流四电极法测试了其在湿氢气中的电导率，扫描电镜观察了材料的显微结构，详细研究了ZnO和NaOH对材料微观结构和导电性能的影响。结果表明添加3mol％ZnO可以在1350℃成功制备出BaZrO3／NaOH复相质子导体，相对于单相的Y掺杂BaZrO3陶瓷，BaZrO3／NaOH复相质子导体显示出更高的质子导电性能。
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| 关 键 词： | BaZrO3 复相质子导体 电导率 氧空位 |
| 文章编号： | 1002-185X（2007）S2-596-03 |
| 修稿时间： | 2007-02-28 |
Preparation and Properties of Y-Doped BaZrO3/NaOH Proton-Conducting Composites |
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| Peng Zhenzhen, Guo Ruisong, Yin Ziguang, Li Juan, Cai Shu.Preparation and Properties of Y-Doped BaZrO3/NaOH Proton-Conducting Composites[J].Rare Metal Materials and Engineering,2007,36(A02):596-598. |
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| Authors: | Peng Zhenzhen Guo Ruisong Yin Ziguang Li Juan Cai Shu |
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| Affiliation: | Key Laboratory of Advanced Ceramics and Machining technology, Ministry of Education, Tianjin University, Tianjin 300072, China |
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| Abstract: | Y-doped BaZrO3/NaOH composites were designed and fabricated with ZnO as sintering aid. Electrical conductivities of the composites were measured in moist hydrogen by a four-probe DC method. Microstructure of samples was observed by SEM. The results revealed that ZnO effectively lowered the sintering temperature of the system. Unfortunately, it had a negative effect on the electrical conductivity. The incorporation of NaOH in the composites greatly improved their proton conductivities. |
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| Keywords: | BaZrO3 protonic conducting composites electrical conductivity oxygen ion vacancy |
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