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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/49934

Title: Novel lanthanum and cerium coatings on (Ba, Sr)-ferrate cathodes for intermediate-temperature solid oxide fuel cells
Authors: Yao-Ming Wang
Chia-Ming Chang
Jing-Shiang Shih
Horng-Yi Chang
Contributors: 國立臺灣海洋大學:輪機工程學系
Keywords: Solid oxide fuel cell
Ba0.5Sr0.5FeO3–δ
Ce coating
Triple-phase boundaries
Date: 2016-11
Issue Date: 2018-09-04T01:11:40Z
Publisher: Journal of the European Ceramic Society
Abstract: Abstract: Ba0.5Sr0.5FeO3–δ (BSF) and Nb-doped BSF (BSNF) particles were coated with single or combined La and Ce (LC) components by a novel semi-organic solution method. Ce-coated BSF (BSF-x Ce) presented a cubic structure after heat treatment. Sintering BSF-x Ce and BSNF-x LC at 1150 °C for 6 h reduced the grain sizes. Among the coated samples, 3.75 mol% LC-coated BSNF (BSNF-3.75 LC) presented the most significant conductivity increase. AC impedance data indicate that the LC coating decreased the ohmic and diffusion resistances in half-cells with a BSNF-x LC cathode and (La0.75Sr0.2Ba0.05)0.175Ce0.825O1.891 (LSBC) electrolyte. The power density of the BSNF-3.75 LC/LSBC/Pt half-cell at 650 °C far exceeds that of BSF/LSBC/Pt at 700 °C. The Ce coating on BSF and LC coating on BSNF provided lattice stability and better BSF cathode-LSBC electrolyte adhesion. LC coating enhanced the cell performance by increasing the triple-phase boundaries (TPBs) in the solid oxide fuel cell (SOFC).
Relation: 36(14) pp.3433-3440
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/49934
Appears in Collections:[輪機工程學系] 期刊論文

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