Y 
            2O 
            3-stabilized ZrO 
            2 aerogels prepared from an epoxide assisted solgel synthesis for use in SOFC composite cathodes

Christopher N. Chervin; Hsiang Wei Chiu; Susan M. Kauzlarich; Brady J. Clapsaddle; Robert S. Glass; Joe H. Satcher

Y ₂O ₃-stabilized ZrO ₂ aerogels prepared from an epoxide assisted solgel synthesis for use in SOFC composite cathodes

Christopher N. Chervin, Hsiang Wei Chiu, Susan M. Kauzlarich, Brady J. Clapsaddle, Robert S. Glass, Joe H. Satcher

Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The effect of Y ₂C ₃-stabilized ZrO ₂ (YSZ) particle size on composite YSZ - (La _0.85Sr _0.15) _0.98MnO ₃ (LSM) cathode microstructure and performance was examined. Two nanocrystalline YSZ powders were compared with different particle size and surface areas; a commercial powder with ∼100 nm particles and 11 m ²/g surface area and a synthesized YSZ powder with ∼10 nm particles and 124 m ²/g surface area. The LSM phase of the composite was the same in both systems. Anode supported single cells were fabricated and the electrochemical performances measured. The cathode microstructures for the high surface area YSZ composites were examined as a function of sintering temperature and compared to the lower surface area YSZ composite cathode sintered at 1150°C. The larger surface area YSZ was prepared using a novel epoxide initiated sol-gel synthesis, followed by aerogel processing. The aerogels were characterized with TEM, SEM, BET surface area analysis, and powder XRD.

Original language	English (US)
Title of host publication	Ceramic Engineering and Science Proceedings
Editors	N.P. Bansal
Pages	49-56
Number of pages	8
Volume	26
Edition	4
State	Published - 2005
Event	29th International Conference on Advanced Ceramics and Composites - Cocoa Beach, FL, United States Duration: Jan 23 2005 → Jan 28 2005

Other

Other	29th International Conference on Advanced Ceramics and Composites
Country	United States
City	Cocoa Beach, FL
Period	1/23/05 → 1/28/05

ASJC Scopus subject areas

Ceramics and Composites

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Y ₂O ₃-stabilized ZrO ₂ aerogels prepared from an epoxide assisted solgel synthesis for use in SOFC composite cathodes . / Chervin, Christopher N.; Chiu, Hsiang Wei; Kauzlarich, Susan M.; Clapsaddle, Brady J.; Glass, Robert S.; Satcher, Joe H.

Ceramic Engineering and Science Proceedings. ed. / N.P. Bansal. Vol. 26 4. ed. 2005. p. 49-56.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chervin, CN, Chiu, HW, Kauzlarich, SM, Clapsaddle, BJ, Glass, RS & Satcher, JH 2005, Y ₂O ₃-stabilized ZrO ₂ aerogels prepared from an epoxide assisted solgel synthesis for use in SOFC composite cathodes in NP Bansal (ed.), Ceramic Engineering and Science Proceedings. 4 edn, vol. 26, pp. 49-56, 29th International Conference on Advanced Ceramics and Composites, Cocoa Beach, FL, United States, 1/23/05.

Chervin, Christopher N. ; Chiu, Hsiang Wei ; Kauzlarich, Susan M. ; Clapsaddle, Brady J. ; Glass, Robert S. ; Satcher, Joe H. / Y ₂O ₃-stabilized ZrO ₂ aerogels prepared from an epoxide assisted solgel synthesis for use in SOFC composite cathodes Ceramic Engineering and Science Proceedings. editor / N.P. Bansal. Vol. 26 4. ed. 2005. pp. 49-56

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title = "Y 2O 3-stabilized ZrO 2 aerogels prepared from an epoxide assisted solgel synthesis for use in SOFC composite cathodes ",

abstract = "The effect of Y 2C 3-stabilized ZrO 2 (YSZ) particle size on composite YSZ - (La 0.85Sr 0.15) 0.98MnO 3 (LSM) cathode microstructure and performance was examined. Two nanocrystalline YSZ powders were compared with different particle size and surface areas; a commercial powder with ∼100 nm particles and 11 m 2/g surface area and a synthesized YSZ powder with ∼10 nm particles and 124 m 2/g surface area. The LSM phase of the composite was the same in both systems. Anode supported single cells were fabricated and the electrochemical performances measured. The cathode microstructures for the high surface area YSZ composites were examined as a function of sintering temperature and compared to the lower surface area YSZ composite cathode sintered at 1150°C. The larger surface area YSZ was prepared using a novel epoxide initiated sol-gel synthesis, followed by aerogel processing. The aerogels were characterized with TEM, SEM, BET surface area analysis, and powder XRD. ",

author = "Chervin, {Christopher N.} and Chiu, {Hsiang Wei} and Kauzlarich, {Susan M.} and Clapsaddle, {Brady J.} and Glass, {Robert S.} and Satcher, {Joe H.}",

year = "2005",

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AU - Chervin, Christopher N.

AU - Chiu, Hsiang Wei

AU - Kauzlarich, Susan M.

AU - Clapsaddle, Brady J.

AU - Glass, Robert S.

AU - Satcher, Joe H.

PY - 2005

Y1 - 2005

N2 - The effect of Y 2C 3-stabilized ZrO 2 (YSZ) particle size on composite YSZ - (La 0.85Sr 0.15) 0.98MnO 3 (LSM) cathode microstructure and performance was examined. Two nanocrystalline YSZ powders were compared with different particle size and surface areas; a commercial powder with ∼100 nm particles and 11 m 2/g surface area and a synthesized YSZ powder with ∼10 nm particles and 124 m 2/g surface area. The LSM phase of the composite was the same in both systems. Anode supported single cells were fabricated and the electrochemical performances measured. The cathode microstructures for the high surface area YSZ composites were examined as a function of sintering temperature and compared to the lower surface area YSZ composite cathode sintered at 1150°C. The larger surface area YSZ was prepared using a novel epoxide initiated sol-gel synthesis, followed by aerogel processing. The aerogels were characterized with TEM, SEM, BET surface area analysis, and powder XRD.

AB - The effect of Y 2C 3-stabilized ZrO 2 (YSZ) particle size on composite YSZ - (La 0.85Sr 0.15) 0.98MnO 3 (LSM) cathode microstructure and performance was examined. Two nanocrystalline YSZ powders were compared with different particle size and surface areas; a commercial powder with ∼100 nm particles and 11 m 2/g surface area and a synthesized YSZ powder with ∼10 nm particles and 124 m 2/g surface area. The LSM phase of the composite was the same in both systems. Anode supported single cells were fabricated and the electrochemical performances measured. The cathode microstructures for the high surface area YSZ composites were examined as a function of sintering temperature and compared to the lower surface area YSZ composite cathode sintered at 1150°C. The larger surface area YSZ was prepared using a novel epoxide initiated sol-gel synthesis, followed by aerogel processing. The aerogels were characterized with TEM, SEM, BET surface area analysis, and powder XRD.

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BT - Ceramic Engineering and Science Proceedings

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