High performance micro-monolithic reversible solid oxide electrochemical reactor
Reversible solid oxide electrochemical reactors should work efficiently in both fuel cell and electrolysis modes in order to be considered a practical technology for the energy field. In addition to improved performance, excellent electrode reversibility and stability for long-term operation are cru...
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my.um.eprints.253662020-08-14T06:57:45Z http://eprints.um.edu.my/25366/ High performance micro-monolithic reversible solid oxide electrochemical reactor Rabuni, Mohamad Fairus Vatcharasuwan, Nattapat Li, Tao Li, Kang TP Chemical technology Reversible solid oxide electrochemical reactors should work efficiently in both fuel cell and electrolysis modes in order to be considered a practical technology for the energy field. In addition to improved performance, excellent electrode reversibility and stability for long-term operation are crucial for such reactors. Herein, high-performance 6-channel solid oxide electrochemical reactors for reversible operation has been successfully developed using a phase-inversion and sintering method. A unique morphology has been obtained where micro-channels were formed from multiple directions and the interchangeable thickness of sponge-like region between each channel and the exterior surface. Such micro-structured cells, which is made from commercially-available materials Ni-YSZ|YSZ|YSZ-LSM, exhibit superior performance for hydrogen (H2) fuel cell achieving 1.62 W cm−2 at 800 °C. Similarly, excellent performance for carbon dioxide (CO2) electrolysis has been demonstrated, achieving current densities up to 6.3 (3.1) A cm−2 under 1.8 (1.5) V at 800 °C. To our knowledge, such high performances are one of the highest reported values for both H2-fuel cell and CO2 electrolysis. This outstanding performance, coupled with superior mechanical robustness, promises a long-awaited alternative to the conventional tubular counterpart that would allow miniaturized system to be commercially applied in the near future. © 2020 Elsevier B.V. Elsevier 2020 Article PeerReviewed Rabuni, Mohamad Fairus and Vatcharasuwan, Nattapat and Li, Tao and Li, Kang (2020) High performance micro-monolithic reversible solid oxide electrochemical reactor. Journal of Power Sources, 458. p. 228026. ISSN 0378-7753 https://doi.org/10.1016/j.jpowsour.2020.228026 doi:10.1016/j.jpowsour.2020.228026 |
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TP Chemical technology Rabuni, Mohamad Fairus Vatcharasuwan, Nattapat Li, Tao Li, Kang High performance micro-monolithic reversible solid oxide electrochemical reactor |
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Reversible solid oxide electrochemical reactors should work efficiently in both fuel cell and electrolysis modes in order to be considered a practical technology for the energy field. In addition to improved performance, excellent electrode reversibility and stability for long-term operation are crucial for such reactors. Herein, high-performance 6-channel solid oxide electrochemical reactors for reversible operation has been successfully developed using a phase-inversion and sintering method. A unique morphology has been obtained where micro-channels were formed from multiple directions and the interchangeable thickness of sponge-like region between each channel and the exterior surface. Such micro-structured cells, which is made from commercially-available materials Ni-YSZ|YSZ|YSZ-LSM, exhibit superior performance for hydrogen (H2) fuel cell achieving 1.62 W cm−2 at 800 °C. Similarly, excellent performance for carbon dioxide (CO2) electrolysis has been demonstrated, achieving current densities up to 6.3 (3.1) A cm−2 under 1.8 (1.5) V at 800 °C. To our knowledge, such high performances are one of the highest reported values for both H2-fuel cell and CO2 electrolysis. This outstanding performance, coupled with superior mechanical robustness, promises a long-awaited alternative to the conventional tubular counterpart that would allow miniaturized system to be commercially applied in the near future. © 2020 Elsevier B.V. |
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Article |
author |
Rabuni, Mohamad Fairus Vatcharasuwan, Nattapat Li, Tao Li, Kang |
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Rabuni, Mohamad Fairus Vatcharasuwan, Nattapat Li, Tao Li, Kang |
author_sort |
Rabuni, Mohamad Fairus |
title |
High performance micro-monolithic reversible solid oxide electrochemical reactor |
title_short |
High performance micro-monolithic reversible solid oxide electrochemical reactor |
title_full |
High performance micro-monolithic reversible solid oxide electrochemical reactor |
title_fullStr |
High performance micro-monolithic reversible solid oxide electrochemical reactor |
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High performance micro-monolithic reversible solid oxide electrochemical reactor |
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high performance micro-monolithic reversible solid oxide electrochemical reactor |
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Elsevier |
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2020 |
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http://eprints.um.edu.my/25366/ https://doi.org/10.1016/j.jpowsour.2020.228026 |
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1680857024302153728 |
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13.160551 |