| Ba1-xPrxCoO3阴极材料在中温SOFC中的应用 |
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| 引用本文： | 王金霞,姚瑛,许大鹏,苏文辉.Ba1-xPrxCoO3阴极材料在中温SOFC中的应用[J].高等学校化学学报,2007,28(11):2146-2149. |
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| 作者姓名： | 王金霞 姚瑛 许大鹏 苏文辉 |
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| 作者单位： | 1. 宁波工程学院电子与信息工程学院,宁波,315016
2. 吉林大学物理学院凝聚态物理系,长春,130023 |
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| 基金项目： | 国家自然科学基金
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浙江省教育厅资助项目 |
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| 摘 要： | 采用湿化学法合成系列阴极材料Ba1-xPrxCoO3(x=0.3, 0.4, 0.5, 0.6). TG-DTA和烧结曲线测试结果表明, 在950 ℃时样品发生相变, 形成了晶相. 样品的SEM结果显示, Pr离子掺杂到一定量时, 将抑制晶粒长大, 减少阴极的孔洞率. 单电池测量结果表明, 用x=0.5的阴极材料制成的单电池表现出最好的输出特性, 具有最大短路电流密度和最大输出功率密度, 是掺杂Y的BaCeO3基电解质的一种优化配比阴极材料.
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| 关 键 词： | 中温固体氧化物燃料电池(IT-SOFC) 阴极 热重-差热 烧结曲线 |
| 文章编号： | 0251-0790（2007）11-2146-04 |
| 收稿时间： | 2007-03-09 |
| 修稿时间： | 2007-03-09 |
Application of Ba1-xPrxCoO3 Cathode Materials in IT-SOFC |
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| WANG Jin-Xia,YAO Ying,XU Da-Peng,SU Wen-Hui.Application of Ba1-xPrxCoO3 Cathode Materials in IT-SOFC[J].Chemical Research In Chinese Universities,2007,28(11):2146-2149. |
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| Authors: | WANG Jin-Xia YAO Ying XU Da-Peng SU Wen-Hui |
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| Institution: | 1. School of Electronic and Information Engeering , Ningbo University of Technology, Ningbo 315016, China; 2. Deparment of Condensed Matter Physics, Jilin University, Changchun 130021, China |
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| Abstract: | Cathode materials Ba1-xPrxCoO3(x=0.3, 0.4, 0.5, 0.6) were prepared with wet chemical method. TG-DTA and sintering curves show that the materials were crystallized in a single perovskite phase at around 950 ℃. The SEM images show that the prohibition of the particle growth and the decrease of the hole ratio were produced when the increase of Pr ions dopant to a certain quantity. The results of the single cell tests show that the fuel cell with the cathodes x=0.5 have the best output performance and the greatest short current density and the maximum output power density, so it has more proper ratio than the other samples and fit Y3+-doped BaCeO3 based solid electrolyte material perfectly. |
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| Keywords: | IT-SOFC Cathode TG-DTA Sintering Curve |
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