Characterization of Ni-YSZ cermet anode for SOFC prepared by glycine nitrate process (Glycine nitrate process에 의한 제조된 SOFC anode용 Ni-YSZ cermet의 물성 분석)

TAE-SUK LEE (이태석); J. Ko (고정훈); 이강석; 김복희

Characterization of Ni-YSZ cermet anode for SOFC prepared by glycine nitrate process

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2011, 21(1), pp.21~26
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering

TAE-SUK LEE ¹, J. Ko ², 이강석 ², 김복희 ²

¹한국해양대학교
²전북대학교

Accredited

ABSTRACT

Ni-YSZ (Yttria Stabilized Zirconia) composite powders were fabricated by glycine nitrate process. The prepared powders were sintered at 1300~1400oC for 4 h in air and reduced at 1000oC for 2 h in a nitrogen and hydrogen atmosphere. The microstructure, electrical conductivity, thermal expansion and mechanical properties of the Ni-YSZ cermets have been investigated with respect to the volume contents of Ni. A porous microstructure consisting of homogeneously distributed Ni and YSZ phases together with well-connected grains was observed. It was found that the open porosity,electrical conductivity, thermal expansion and bending strength of the cermets are sensitive to the volume content of Ni. The Ni-YSZ cermet containing 40 vol% Ni was ascertained to be the optimum composition. This composition offers sufficient open porosity of more than 30 %, superior electrical conductivities of 917.4 S/cm at 1000oC and a moderate average thermal expansion coefficient of 12.6 × 10−6oC−1between room temperature and 1000oC.

KEYWORDS

Ni-YSZ, SOFC, Powder synthesis, Glycine nitrate process, New renewable energy, Fuel cell

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[journal] R.M.C. Clemmer / 2004 / Influence of porous composite microstructure on the processing and properties of solid oxide fuel cell anodes / Solid State Ionics 166 : 251~

[journal] K. Eguchi / 1995 / An effect of anodic reaction on the current-voltage characteristics of solid oxide fuel cells / Chemistry Letters : 963~

[journal] S. Primdahl / 1999 / (La0.75Sr0.25) (Cr0.5Mn0.5)O3/YSZ composite anodes for methane oxidation reaction in solid oxide fuel cells / J. Electrochem. Soc 146(8) : 2827~

[journal] Y. Yin / 2004 / Fabrication and performance of impregnated ni anodes of solid oxide fuel cells / J. Power Sources 132 : 36~

[journal] N.Q. Minh / 1993 / Ceramic fuel cells / J. Am. Ceram. Soc 76 : 563~

[journal] G. Matula / 2008 / Microstructure, mechanical and electrical properties of Ni- YSZ anode supported solid oxide fuel cells / Archives of Materials Sci. & Eng 32 : 21~

[journal] N.Q. Minh / 1993 / Ceramic fuel cells / J. Am. Ceram. Soc 76(3) : 563~

[journal] 허장원 / 2002 / Effect of the Pore Structure on the Anodic Property of SOFC / 한국세라믹학회지 / 한국세라믹학회 39(1) : 86~91

[journal] 이태석 / 2010 / Synthesis of Ni-YSZ cermets for SOFC by glycine nitrate process / 한국결정성장학회지 / 한국결정성장학회 20(6) : 289~294

[other] KS L / 1995 / Testing Method for Flexural Strength(Modulus of Rupture) of High Performance Ceramics / KS L 1591

[journal] T. Kawada / 1990 / Structure and polarization characteristics of solid oxide fuel cell anodes / Solid State Ionics 40 : 402~

[journal] T. Fukui / 2002 / Morphology control of the electrode electrolyte by a sol-gel coating method / J. Power Source 110 : 91~

[confproc] Z.-C. Chen / 2007 / Microstructure and electriccal conductivity of Ni/YSZ ceremts for SOFC / 16th International conference on composit materials

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