SDC纳米粒子浸渍GBCO复合阴极的性能研究

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英文篇名：A Study of the Properties of SDC Nanoppapers Impregnated GBCO Composite Cathode 作者：胡小虎 ; 雷钰 ; 谭永鑫 ; 张华 英文作者：HU Xiaohu;LEI Yu;TAN Yongxin;ZHANG Hua; 关键词：固体氧化物电池 ; 阴极材料 ; 离子浸渍法 英文关键词：solid oxide battery;;cathode material;;ion impregnation method 中文刊名：CXYY 英文刊名：Technology Innovation and Application 机构：南京工业大学; 出版日期：2019-01-17 出版单位：科技创新与应用 年：2019 期：No.258 基金：江苏省省级重点大学生创新创业训练项目“SDC纳米粒子浸渍GBCO复合阴极的性能”研究成果(编号:201810291007Z) 语种：中文; 页：CXYY201902017 页数：4 CN：02 ISSN：23-1581/G3 分类号：51-53+57

摘要

SOFC在军事、移动通讯、固定电源、交通运输、热电联供等诸多领域有着广阔的应用。传统的SOFC工作温度较高(约1000℃),降低工作温度有助于扩大材料选择范围、延长电池寿命和降低成本。然而,随着温度降低,阴极的活性降低、极化电阻增大,导致电池的效率急剧下降。因此,开发中温条件下高性能的阴极材料成为研究重点。本课题采用甘氨酸-硝酸盐法制备GdBaCo2O5+δ粉末。以相应的硝酸盐作原料,以柠檬酸、甘氨酸、乙酸作络合剂,制备Ce0.8Sm0.2O1.9的前驱体溶液。采用浸渍法从烧结温度、浸渍量等因素优化阴极结构,制备中温固体氧化物燃料电池的高性能阴极。我们已经得到了GBCO的最佳烧结温度为1000℃,得到最大的SDC的浸渍量为12%。
        SOFC is widely used in many fields,such as military,mobile communication,fixed power supply,transportation,cogeneration and so on.The working temperature of traditional SOFC is higher(about 1,000 ℃).Lowering the working temperature is helpful to expand the range of material selection,prolong the battery life and reduce the cost.However,as the temperature decreases,the activity of the cathode decreases and the polarization resistance increases,resulting in a sharp decline in the efficiency of the battery.Therefore,the development of high-performance cathode materials at medium temperature has become the focus of research.In this paper,GdBaCo2 O5+ δ powder was prepared by glycine-nitrate method.The precursor solution of Ce0.8Sm0.2O1.9 was prepared with nitrate as raw material and citric acid,glycine and acetic acid as complexing agents.The high performance cathode of intermediate temperature solid oxide fuel cell was prepared by impregnation method to optimize the cathode structure from sintering temperature,impregnation amount and other factors.We have obtained that the optimum sintering temperature of GBCO is 1,000 ℃,and the maximum impregnation of SDC is 12%.

引文

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