Influence of characteristics of stabilized zirconia electrolyte on performance of cermet supported tubular SOFCs

稀有金属（英文版）, 2006, 25(z1): 273-279.

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1.State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

2.State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

3.State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

4.State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

5.State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

基金项目: 西安交通大学校科研和教改项目 Foundation of China Education Ministry for Talented Young Scholar, Education Promotion Project

Influence of characteristics of stabilized zirconia electrolyte on performance of cermet supported tubular SOFCs

Keywords： solid oxide fuel cells (SOFCs)

Ni-Al2O3 cermet supported tubular SOFC was fabricated by thermal spraying. Flame-sprayed Al2O3-Ni cermet coating plays dual roles of a support tube and an anode current collector. 4.5mol.% yttria-stabilized zirconia (YSZ) and 10mol.% scandia-stabilized zirconia (ScSZ) coatings were deposited by atmospheric plasma spraying (APS) as the electrolyte in present study. The electrical conductivity of electrolyte was measured using DC method. The post treatment was employed using nitrate solution infiltration to densify APS electrolyte layer for improvement of gas permeability. The electrical conductivity of electrolyte and the performance of single cell were investigated to optimize SOFC performance. The electrical conductivity of the as-sprayed YSZ and ScSZ coating is about 0.03 and 0.07 S·cm-1 at 1000 ℃, respectively. The ohmic polarization significantly influences the performance of SOFC. The maximum output power density at 1000 ℃ increases from 0.47 to 0.76 W·cm-2 as the YSZ electrolyte thickness reduces from 100 μm to 40 μm. Using APS ScSZ coating of about 40 μm as the electrolyte, the test cell presents a maximum power output density of over 0.89 W·m-2 at 1000 ℃.

参考文献

[1]	Isenberg A Q.[A].Pennington,1977:572.
[2]	Minoru I;Atsushi M .Growth rate of yttria-stabilized zirconia thin films formed by electrochemical vapour-deposition using NiO as an oxygen source:Ⅱ.Effect of the porosity of NiO substrate[J].Solid State Ionicis,1997,104(3-4):303.
[3]	M. Lang;R. Henne;S. Schaper;G. Schiller .Development and characterization of vacuum plasma sprayed thin film solid oxide fuel cells[J].Journal of Thermal Spray Technology,2001(4):618-625.
[4]	H. Tsukuda;A. Notomi;N. Hisatome .Application of plasma spraying to tubular-type solid oxide fuel cells production[J].Journal of Thermal Spray Technology,2000(3):364-368.
[5]	Kim S G;Yoon S P;Nam S W et al.Fabrication and characterization of a YSZ/YDC composite electrolyte by a sol-gel coating method[J].Journal of Power Sources,2002,110(01):222.
[6]	Yonglian Zhang;Jianfeng Gao;Dingkun Peng .Dip-coating thin yttria-stabilized zirconia films for solid oxide fuel cell applications[J].Ceramics International,2004(6):1049-1053.
[7]	Nagata A.;Okayama H. .Characterization of solid oxide fuel cell device having a three-layer film structure grown by RF magnetron sputtering[J].Vacuum: Technology Applications & Ion Physics: The International Journal & Abstracting Service for Vacuum Science & Technology,2002(3/4):523-529.
[8]	Fukumoto M;Negoro K;Okane I et al.Fabrication of solid oxide fuel cell electrodes by plasma spraying of Ni/YSZ mechanically alloyed composite powders[J].Nippon Kinzoku Gakkaishi,1994,58(01):50.
[9]	Barthel K;Rambert S;Siegmann S .Microstructure and polarization resistance of thermally sprayed composite cathodes for solid oxide fuel cell use[J].Journal of Thermal Spray Technology,2000,9(03):343.
[10]	Kuo J H;Vora S D;Singhal S C .Plasma spraying of lanthanum chromite films for solid oxide fuel cell interconnection application[J].Journal of The American Chemical Society,1997,80(03):589.
[11]	Li C J;Ohmori A .Relationship between the structure and properties of thermally sprayed coatings[J].Journal of Thermal Spray Technology,2002,11(03):365.
[12]	Li CJ.;Mcpherson R.;Ohmori A. .THE RELATIONSHIP BETWEEN MICROSTRUCTURE AND YOUNGS MODULUS OF THERMALLY SPRAYED CERAMIC COATINGS[J].Journal of Materials Science,1997(4):997-1004.
[13]	Ohmori A;Li C J .Quantitative characterization of the structure of plasma sprayed Al2O3 coating by using copper electroplating[J].Thin Solid Films,1991,201:241.
[14]	Li C J;Wang W Z .Quantitative characterization of lamellar microstructure of plasma-sprayed ceramic coatings through visualization of void distribution[J].Materials Science and Engineering A-structural Materials Properties Microstructure and Processing,2004,386(1-2):10.
[15]	Ohmori A;Li C J;Arata Y et al.Dependence of connected porosity in plasma sprayed ceramic coatings on structure[J].J Jpn High Temp Soc,1990,16:332.
[16]	K. Okumura;Y. Aihara;S. Ito;S. Kawasaki .Development of thermal spraying-sintering technology for solid oxide fuel cells[J].Journal of Thermal Spray Technology,2000(3):354-359.
[17]	Khor K A;Yu L G;Chan S H et al.Densification of plasma sprayed YSZ electrolytes by spark plasma sintering(SPS)[J].Journal of the European Ceramic Society,2003,23:1855.
[18]	Li CJ;Li CX;Ning MJ .Performance of YSZ electrolyte layer deposited by atmospheric plasma spraying for cermet-supported tubular SOFC[J].Vacuum: Technology Applications & Ion Physics: The International Journal & Abstracting Service for Vacuum Science & Technology,2004(3/4):699-703.
[19]	Li C J;Ning X J;Li C X .Effect of densification process on the properties of plasma-sprayed YSZ electrolyte coatings for solid oxide fuel cell[J].Surface and Coatings Technology,2005,190(01):60.
[20]	Yamamoto O .Solid oxide fuel cells:fundamental aspects and prospects[J].Electrochimica Acta,2000,45(15-16):2423.
[21]	Arachi Y.;Yamamoto O.;Takeda Y.;Imanishai N.;Sakai H. .Electrical conductivity of the ZrO_2-Ln_2O_3 (Ln = lanthanides) system[J].Solid state ionics,1999(1/4):133-139.
[22]	Cai Z.;Lan TN.;Wang S.;Dokiya M. .Supported Zr(Sc)O-2 SOFCs for reduced temperature prepared by slurry coating and co-firing[J].Solid state ionics,2002(Pt.A):583-590.
[23]	Li CX;Li CJ;Long HG;Xing YZ;Ning XJ;Zhang C;Liao HL;Coddet C .Characterization of atmospheric plasma-sprayed Sc2O3-ZrO2 electrolyte coating[J].Solid state ionics,2006(19/25):2149-2153.
[24]	Li CJ;Li CX;Wang M .Effect of spray parameters on the electrical conductivity of plasma-sprayed La1-xSrxMnO3 coating for the cathode of SOFCs[J].Surface & Coatings Technology,2005(1/3):278-282.
[25]	Li CJ;Li CX;Xing YZ;Gao M;Yang GJ .Influence of YSZ electrolyte thickness on the characteristics of plasma-sprayed cermet supported tubular SOFC[J].Solid state ionics,2006(19/25):2065-2069.
[26]	Ivers-Tiffee E;Weber A;Herbstritt D .Materials and technologies for SOFC-components[J].Journal of the European Ceramic Society,2001,21:1805.

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材料期刊网

Influence of characteristics of stabilized zirconia electrolyte on performance of cermet supported tubular SOFCs

参考文献