Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC
This study aims to investigate the fabrication of anode/electrolyte dual-layer hollow fiber (DLHF) with improved electrolyte properties and reduced sintering temperature for intermediate temperature solid oxide fuel cells (IT-SOFCs) via a single-step phase inversion-based co-extrusion/co-sintering t...
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my.utm.876762020-11-30T13:08:32Z http://eprints.utm.my/id/eprint/87676/ Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC Jamil, Siti Munira Othman, Mohd. Hafiz Dzarfan A. Rahman, Mukhlis Jaafar, Juhana Ismail, Ahmad Fauzi Honda, Sawao Iwamoto, Yuji TP Chemical technology This study aims to investigate the fabrication of anode/electrolyte dual-layer hollow fiber (DLHF) with improved electrolyte properties and reduced sintering temperature for intermediate temperature solid oxide fuel cells (IT-SOFCs) via a single-step phase inversion-based co-extrusion/co-sintering technique. The sintering properties of cerium gadolinium oxide (CGO) electrolyte were studied by comparing two approaches: i) using mixed particle size electrolyte; and (ii) adding lithium oxide as sintering additive in electrolyte. When comparing the maximum power density of MT-SOFC namely nickel (Ni)-CGO/CGO (unmodified), Ni-CGO/30%nano-70%micron CGO (first approach) and Ni-CGO/lithium (Li)-CGO (second approach); it was found that the Ni-CGO/30%nano-70%micron CGO cell performed the best. At 500 °C, the cell produced the highest maximum power density, which was 27.5 mWcm−2 as compared to Ni-CGO/Li-CGO cell (6 mWcm−2) and Ni-CGO/CGO cell (20 mWcm−2). The high maximum power density was attributed to the porous anode in Ni-CGO/30%nano-70%mic CGO dual layer hollow fiber which provided higher number of active reaction sites. Meanwhile, the dense electrolyte layer possessed pore filling caused by the introduction of 30% nano size CGO particles which reduced the direct flow of gases between the electrodes. The results have proven that incorporating nano size CGO and sintering additives accelerated the densification of ceria electrolyte, as well as presented an advanced electrolyte material for MT-SOFC. Elsevier Ltd. 2019-04 Article PeerReviewed Jamil, Siti Munira and Othman, Mohd. Hafiz Dzarfan and A. Rahman, Mukhlis and Jaafar, Juhana and Ismail, Ahmad Fauzi and Honda, Sawao and Iwamoto, Yuji (2019) Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC. Renewable Energy, 134 . pp. 1423-1433. ISSN 0960-1481 http://dx.doi.org/10.1016/j.renene.2018.09.071 DOI:10.1016/j.renene.2018.09.071 |
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TP Chemical technology Jamil, Siti Munira Othman, Mohd. Hafiz Dzarfan A. Rahman, Mukhlis Jaafar, Juhana Ismail, Ahmad Fauzi Honda, Sawao Iwamoto, Yuji Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC |
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This study aims to investigate the fabrication of anode/electrolyte dual-layer hollow fiber (DLHF) with improved electrolyte properties and reduced sintering temperature for intermediate temperature solid oxide fuel cells (IT-SOFCs) via a single-step phase inversion-based co-extrusion/co-sintering technique. The sintering properties of cerium gadolinium oxide (CGO) electrolyte were studied by comparing two approaches: i) using mixed particle size electrolyte; and (ii) adding lithium oxide as sintering additive in electrolyte. When comparing the maximum power density of MT-SOFC namely nickel (Ni)-CGO/CGO (unmodified), Ni-CGO/30%nano-70%micron CGO (first approach) and Ni-CGO/lithium (Li)-CGO (second approach); it was found that the Ni-CGO/30%nano-70%micron CGO cell performed the best. At 500 °C, the cell produced the highest maximum power density, which was 27.5 mWcm−2 as compared to Ni-CGO/Li-CGO cell (6 mWcm−2) and Ni-CGO/CGO cell (20 mWcm−2). The high maximum power density was attributed to the porous anode in Ni-CGO/30%nano-70%mic CGO dual layer hollow fiber which provided higher number of active reaction sites. Meanwhile, the dense electrolyte layer possessed pore filling caused by the introduction of 30% nano size CGO particles which reduced the direct flow of gases between the electrodes. The results have proven that incorporating nano size CGO and sintering additives accelerated the densification of ceria electrolyte, as well as presented an advanced electrolyte material for MT-SOFC. |
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Article |
author |
Jamil, Siti Munira Othman, Mohd. Hafiz Dzarfan A. Rahman, Mukhlis Jaafar, Juhana Ismail, Ahmad Fauzi Honda, Sawao Iwamoto, Yuji |
author_facet |
Jamil, Siti Munira Othman, Mohd. Hafiz Dzarfan A. Rahman, Mukhlis Jaafar, Juhana Ismail, Ahmad Fauzi Honda, Sawao Iwamoto, Yuji |
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Jamil, Siti Munira |
title |
Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC |
title_short |
Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC |
title_full |
Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC |
title_fullStr |
Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC |
title_full_unstemmed |
Properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for MT-SOFC |
title_sort |
properties and performance evaluation of dual-layer ceramic hollow fiber with modified electrolyte for mt-sofc |
publisher |
Elsevier Ltd. |
publishDate |
2019 |
url |
http://eprints.utm.my/id/eprint/87676/ http://dx.doi.org/10.1016/j.renene.2018.09.071 |
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1685578972508717056 |
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13.18916 |