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Effect of sintering aid on CGO electrolyte for the fabrication of low cost, structural-controlled solid oxide fuel cell

Manakor, Krishnan and Jamil, Siti Munira and Othman, Mohd. Hafiz Dzarfan and A. Rahman, Mukhlis and Jaafar, Juhana and Ismail, Ahmad Fauzi (2014) Effect of sintering aid on CGO electrolyte for the fabrication of low cost, structural-controlled solid oxide fuel cell. Jurnal Teknologi (Sciences and Engineering), 70 (2). pp. 33-39. ISSN 0127-9696

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Official URL: https://dx.doi.org/10.11113/jt.v70.3432

Abstract

This paper reports the effort in reducing sintering temperature of cerium gadolinium oxide (CGO), a common intermediate temperature solid oxide fuel cell (SOFC) electrolyte, by doping it with lithium nitrate (LiNO3) at 1, 2 and 3 mol%. LiNO3-CGO/NiO-CGO electrolyte/anode dual-layer hollow fibre (HF) for micro-tubular SOFC has been developed in this study via brush painting technique. The developed dual-layer HFs, which are co-sintered at 900-1250°C with the interval of 50°C, characterized by mechanical strength and microstructural analysis. Benefit of this study is the reduction of the sintering temperature, which eventually contributes to the fabrication of low-cost SOFC. Moreover, brush painting technique provides great adhesion between anode and electrolyte layer during sintering. With the increasing sintering temperature and content of LiNO3, densification and the mechanical strength of the developed dual-layer HF increased. Based on the experimental works, a sintering temperature of 1150°C with 3 mol% of LiNO3 as sintering additive is recommended for the construction of the low cost dual-layer micro-tubular SOFCs

Item Type:Article
Uncontrolled Keywords:cerium-gadolinium oxide (CGO), lithium nitrate (LiNO3), sintering aid, micro-tubular solid oxide fuel cell (MT-SOFC), sintering temperature
Subjects:T Technology > TN Mining engineering. Metallurgy
Divisions:Petroleum and Renewable Energy Engineering
ID Code:52558
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 11:53
Last Modified:19 Sep 2018 13:09

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