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
  • 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).

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

CLC Number: 

  • O642.5

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