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| Abstract No.: |
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Scheduled at:
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Tuesday, May 04, 2010, Olivia Room 4:40 PM
Power Engineering and SOFC 2
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| Title: |
Study on microstructure and electrochemical performance of Ni/YSZ anode deposited by APS
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| Authors: |
Chang-Jiu Li / Xi'an Jiaotong University, P.R. China
Cheng-Xin Li* / School of Materials Science and Engineering, Xi'an Jiaotong University, P.R.China
Rui-Tao Li/ School of Materials Science and Engineering, Xi'an Jiaotong University, P.R.China
Guan-Jun Yang/ School of Materials Science and Engineering, Xi'an Jiaotong University, P.R.China
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| Abstract: |
Atmospheric plasma spraying (APS) is regarded as one of the most promising methods for manufacturing the components employed in SOFCs because of its fast deposition rate and cost-effective characteristics. It is considered that the anode activity can be improved through increasing the triple-phase boundaries (TPBs) at the electrolyte/anode interface. The active TPB length, and consequently the performance of the cell, can be adjusted by varying the composition and microstructure of the APS anode. In this paper, agglomerated powders of NiO and YSZ are prepared by spray-drying for preparation of SOFC anode. The anode was deposited by APS. The influences of APS process parameters and microstructure of agglomerated powders on the microstructure and electrochemical performance of Ni/YSZ anode are investigated for the optimization of SOFC anode. The mechanism of electrochemical reaction in SOFC anode is also discussed.
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