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Thermo-Electrochemical Cells Based on Carbon Nanotube Electrodes by Electrophoretic Deposition
Drawbacks of low efficiency and high cost of the electrode materials have restricted the wide applications of the thermo-electrochemical cells (TECs). Due to high specific areas and electrical conductivities, the low cost multi-walled carbon nanotubes (MWNTs) are promising alternative electrode mate...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Berlin Heidelberg
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6223680/ https://www.ncbi.nlm.nih.gov/pubmed/30460283 http://dx.doi.org/10.1007/s40820-016-0082-8 |
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author | Qian, Weijin Cao, Mingxuan Xie, Fei Dong, Changkun |
author_facet | Qian, Weijin Cao, Mingxuan Xie, Fei Dong, Changkun |
author_sort | Qian, Weijin |
collection | PubMed |
description | Drawbacks of low efficiency and high cost of the electrode materials have restricted the wide applications of the thermo-electrochemical cells (TECs). Due to high specific areas and electrical conductivities, the low cost multi-walled carbon nanotubes (MWNTs) are promising alternative electrode materials. In this work, the MWNT films of up to 16 cm(2) were synthesized on stainless steel substrates by the electrophoretic deposition (EPD) to make the thermo-electrochemical electrodes. MWNT electrodes based on TECs were characterized by cyclic voltammetry and the long-term stability tests with the potassium ferri/ferrocyanide electrolyte. The TECs reached the current density of 45.2 A m(−2) and the maximum power density of 0.82 W m(−2). The relative power conversion efficiency of the MWNT electrode is 50 % higher than that for the Pt electrode. Meanwhile, the TECs was operated continuously for 300 h without performance degradation. With the priorities of low cost and simple fabrication, EPD-based MWNT TECs may become commercially viable. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s40820-016-0082-8) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-6223680 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | Springer Berlin Heidelberg |
record_format | MEDLINE/PubMed |
spelling | pubmed-62236802018-11-18 Thermo-Electrochemical Cells Based on Carbon Nanotube Electrodes by Electrophoretic Deposition Qian, Weijin Cao, Mingxuan Xie, Fei Dong, Changkun Nanomicro Lett Article Drawbacks of low efficiency and high cost of the electrode materials have restricted the wide applications of the thermo-electrochemical cells (TECs). Due to high specific areas and electrical conductivities, the low cost multi-walled carbon nanotubes (MWNTs) are promising alternative electrode materials. In this work, the MWNT films of up to 16 cm(2) were synthesized on stainless steel substrates by the electrophoretic deposition (EPD) to make the thermo-electrochemical electrodes. MWNT electrodes based on TECs were characterized by cyclic voltammetry and the long-term stability tests with the potassium ferri/ferrocyanide electrolyte. The TECs reached the current density of 45.2 A m(−2) and the maximum power density of 0.82 W m(−2). The relative power conversion efficiency of the MWNT electrode is 50 % higher than that for the Pt electrode. Meanwhile, the TECs was operated continuously for 300 h without performance degradation. With the priorities of low cost and simple fabrication, EPD-based MWNT TECs may become commercially viable. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1007/s40820-016-0082-8) contains supplementary material, which is available to authorized users. Springer Berlin Heidelberg 2016-01-29 2016 /pmc/articles/PMC6223680/ /pubmed/30460283 http://dx.doi.org/10.1007/s40820-016-0082-8 Text en © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Article Qian, Weijin Cao, Mingxuan Xie, Fei Dong, Changkun Thermo-Electrochemical Cells Based on Carbon Nanotube Electrodes by Electrophoretic Deposition |
title | Thermo-Electrochemical Cells Based on Carbon Nanotube Electrodes by Electrophoretic Deposition |
title_full | Thermo-Electrochemical Cells Based on Carbon Nanotube Electrodes by Electrophoretic Deposition |
title_fullStr | Thermo-Electrochemical Cells Based on Carbon Nanotube Electrodes by Electrophoretic Deposition |
title_full_unstemmed | Thermo-Electrochemical Cells Based on Carbon Nanotube Electrodes by Electrophoretic Deposition |
title_short | Thermo-Electrochemical Cells Based on Carbon Nanotube Electrodes by Electrophoretic Deposition |
title_sort | thermo-electrochemical cells based on carbon nanotube electrodes by electrophoretic deposition |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6223680/ https://www.ncbi.nlm.nih.gov/pubmed/30460283 http://dx.doi.org/10.1007/s40820-016-0082-8 |
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