CIESC Journal ›› 2018, Vol. 69 ›› Issue (S1): 136-142.DOI: 10.11949/j.issn.0438-1157.20170914

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Fabrication and performance of NiO-BZCYYb anode-supported solid oxide fuel cells (SOFCs) by in-situ dip coating technique

DING Jiao1, YIN Yaoqi2, BAI Yaohui3, ZHOU Xiangyang1, LIU Qihai1, YIN Guoqiang1   

  1. 1 College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China;
    2 Institute of Green Materials and Energy Technology, Guangzhou Vocational College of Science and Technology, Guangzhou 510550, Guangdong, China;
    3 Zhuhai Onward Co. Ltd., Zhuhai 519040, Guangdong, China
  • Received:2017-07-17 Revised:2017-07-31 Online:2018-09-30 Published:2018-09-30
  • Supported by:

    supported by the National Natural Science Foundation of China (21376280), The Science and Technology Plan of Guangdong Province (2017B020216004, 2014B030303004) and The Higher Education "Young Creative Talents" Project Special Funds of Guangdong Province (KA1705081).

原位浸渍法制备NiO-BZCYYb阳极支撑SOFCs及电化学性能

丁姣1, 尹垚骐2, 白耀辉3, 周向阳1, 刘其海1, 尹国强1   

  1. 1 仲恺农业工程学院化学化工学院, 广东 广州 510225;
    2 广州科技职业技术学院绿色材料与能源技术研究所, 广东 广州 510550;
    3 珠海安和生化科技有限公司, 广东 珠海 519040
  • 通讯作者: 尹国强,E-mail:yingq007@163.com
  • 基金资助:

    国家自然科学基金项目(21376280);广东省科技计划(2017B020216004;2014B030303004);广东省普通高校青年创新人才项目(KA1705081)。

Abstract:

A tubular anode supported SOFCs with NiO-BaZr0.1Ce0.7Y0.1Yb0.1O3-δ (BZCYYb)/SDC/LSCF structure was fabricated by in-situ dip coating and one-step sintering technology. The electrochemical performance, thermal cycling performance and operating stability under working voltage of the single cell were obtained with the moist H2 (3% (vol) H2O) as fuel and air as oxidant. The results indicate that the open-circuit voltage were 1.084,1.074,1.067,1.058 and 1.046 V, and the maximum power densities were 0.12,0.25,0.38, 0.54 and 0.70 W·cm-2 at 600,650, 700, 750 and 800℃, respectively. The results also suggest that the single cell running stablely in continuous discharge testing process at 700℃ and 0.7 V without obvious decline. The single cell had successfully experienced thermal cycling test for eleven times and the output power was stable. These results presented that the cell showed good thermo-mechanical properties and was able to withstand the repeated start-up tests. The developed SOFCs with new kind of anode (NiO-BZCYYb) are highly promising for industrial and commercial development applications in future.

Key words: fuel cells, anode supported, membrane, in-situ dip coating technique, electrochemistry, stability

摘要:

采用原位浸渍法一步烧结成型制备了NiO-BaZr0.1Ce0.7Y0.1Yb0.1O3-δ(BZCYYb)/SDC/LSCF管状结构阳极支撑型SDC电解质膜固体氧化物燃料电池(SOFCs)。以加湿H2(约含有体积分数为3%的水)为燃料,空气为氧化剂,研究了电池的电化学性能、热循环性能和工作电压下运行的稳定性。结果表明:电池在600、650、700、750、800℃的开路电压分别为1.084、1.074、1.067、1.058、1.046 V;最大输出功率密度分别为0.12、0.25、0.38、0.54和0.70 W·cm-2。单电池在700℃和0.7 V连续放电测试过程中稳定运行,没有明显的下降和衰退。单电池经历了11次热循环,输出功率稳定,能够经受住重复启动考验。

关键词: 燃料电池, 阳极支撑, 膜, 原位浸渍, 电化学, 稳定性

CLC Number: