Development of a novel cell structure for low-temperature SOFC using porous stainless steel support combined with hydrogen permeable Pd layer and thin film proton conductor

JOURNAL OF ALLOYS AND COMPOUNDS

卷:654

Article

Kariya, Tetsuro^1,2  Tanaka, Hiroki¹  Hirono, Tomoki²  Kuse, Tetsuji²  Yanagimoto, Katsu²  Uchiyama, Kiyoshi³  Henmi, Mitsunori⁴  Hirose, Mitsutaka⁴  Kimura, Isao⁴  Suu, Koukou⁴  Funakubo, Hiroshi¹ 

[1] Tokyo Inst Technol, Dept Innovat & Engn Mat, Yokohama, Kanagawa 2268502, Japan

[2] Sanyo Special Steel Co Ltd, Himeji, Hyogo 6728677, Japan

[3] Tsuruoka Natl Coll Technol, Tsuruoka, Yamagata 9978511, Japan

[4] ULVAC Inc, Chigasaki, Kanagawa 2538543, Japan

关键词: Solid oxide fuel cell;    Proton conductor;    Metal powder;    Porous substrate;    Low temperature;   

DOI  :  10.1016/j.jallcom.2015.09.109

来源: Elsevier

【 摘 要 】

A novel cell structure for low-temperature SOFC was proposed, using porous stainless steel support substrates combined with thin hydrogen permeable Pd layers, thin-film proton conductor, and thin-film cathode. Metallic supports consist of sintered ferritic stainless steel spherical powders whose thermal expansion coefficient is close to that of the hydrogen permeable layers and proton conductive electrolytes. To prepare the cell, both the 1.2-mu m thick proton conductive Sr(Zr0.8Y0.2)O3-delta electrolyte layer and the 100-nm thick (La0.6Sr0.4)(Co0.2Fe0.8)O3-delta cathode layer were deposited by pulsed laser deposition (PLD) on a Pd-coated porous ferritic stainless steel substrate. The power generation performance at a low temperature of 400 degrees C was demonstrated in this proposed cell for the first time, while obtained power density is still low and improvements are required. (C) 2015 Elsevier B.V. All rights reserved.

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