Polyacrylonitrile-based electrospun carbon paper for electrode applications
Polyacrylonitrile (PAN)-based carbon paper with fiber diameters of 200–300 nm was developed through hot-pressing, pre-oxidation, and carbonization of electrospun fiber mats. Changes in morphology, crystallinity, and surface chemistry of the hot-pressed carbon paper were investigated. More junctions...
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| Format: | Article |
| Language: | en_US |
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Wiley Blackwell
2013
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| Online Access: | http://hdl.handle.net/1721.1/79582 https://orcid.org/0000-0002-4558-245X https://orcid.org/0000-0001-8137-1732 |
| _version_ | 1826207837889495040 |
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| author | Yang, Ying Simeon, Fritz Rutledge, Gregory C. Hatton, T. Alan |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Yang, Ying Simeon, Fritz Rutledge, Gregory C. Hatton, T. Alan |
| author_sort | Yang, Ying |
| collection | MIT |
| description | Polyacrylonitrile (PAN)-based carbon paper with fiber diameters of 200–300 nm was developed through hot-pressing, pre-oxidation, and carbonization of electrospun fiber mats. Changes in morphology, crystallinity, and surface chemistry of the hot-pressed carbon paper were investigated. More junctions between fibers were formed with increasing hot-press time, which is attributed to melting and bonding of fibers. The bulk density increased to 0.5–0.6 g/cm[superscript 3], which could help to improve the volume energy density for electrode applications. The conductivity of the carbon paper was found to be about 40 S/cm when the surface area was ∼ 2 m[superscript 2]/g, and depends not only on the conductivity of the individual nanofibers but also on the contacts between the nanofibers. The performance of the electrospun carbon paper as an electrode for electrochemical reactions involving ferrocene molecules was affected by the preparation protocol: the higher surface area of the electrodes formed with shorter hot-press times provided a higher current generated per unit mass than that obtained with electrodes prepared using longer hot-press time, but electrodes prepared with longer hot-press times exhibited higher electrical conductivity and faster electron transfer kinetics. |
| first_indexed | 2024-09-23T13:55:45Z |
| format | Article |
| id | mit-1721.1/79582 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:55:45Z |
| publishDate | 2013 |
| publisher | Wiley Blackwell |
| record_format | dspace |
| spelling | mit-1721.1/795822022-10-01T18:03:18Z Polyacrylonitrile-based electrospun carbon paper for electrode applications Yang, Ying Simeon, Fritz Rutledge, Gregory C. Hatton, T. Alan Massachusetts Institute of Technology. Department of Chemical Engineering Rutledge, Gregory C. Yang, Ying Simeon, Fritz Hatton, T. Alan Rutledge, Gregory C. Polyacrylonitrile (PAN)-based carbon paper with fiber diameters of 200–300 nm was developed through hot-pressing, pre-oxidation, and carbonization of electrospun fiber mats. Changes in morphology, crystallinity, and surface chemistry of the hot-pressed carbon paper were investigated. More junctions between fibers were formed with increasing hot-press time, which is attributed to melting and bonding of fibers. The bulk density increased to 0.5–0.6 g/cm[superscript 3], which could help to improve the volume energy density for electrode applications. The conductivity of the carbon paper was found to be about 40 S/cm when the surface area was ∼ 2 m[superscript 2]/g, and depends not only on the conductivity of the individual nanofibers but also on the contacts between the nanofibers. The performance of the electrospun carbon paper as an electrode for electrochemical reactions involving ferrocene molecules was affected by the preparation protocol: the higher surface area of the electrodes formed with shorter hot-press times provided a higher current generated per unit mass than that obtained with electrodes prepared using longer hot-press time, but electrodes prepared with longer hot-press times exhibited higher electrical conductivity and faster electron transfer kinetics. 2013-07-11T16:53:52Z 2013-07-11T16:53:52Z 2012-06 2011-07 Article http://purl.org/eprint/type/JournalArticle 00218995 http://hdl.handle.net/1721.1/79582 Yang, Ying, Fritz Simeon, T.Alan Hatton, and Gregory C. Rutledge. “Polyacrylonitrile-based electrospun carbon paper for electrode applications.” Journal of Applied Polymer Science 124, no. 5 (June 5, 2012): 3861-3870. https://orcid.org/0000-0002-4558-245X https://orcid.org/0000-0001-8137-1732 en_US http://dx.doi.org/10.1002/app.35485 Journal of Applied Polymer Science Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf Wiley Blackwell Prof. Rutledge Via Erja Kajosalo |
| spellingShingle | Yang, Ying Simeon, Fritz Rutledge, Gregory C. Hatton, T. Alan Polyacrylonitrile-based electrospun carbon paper for electrode applications |
| title | Polyacrylonitrile-based electrospun carbon paper for electrode applications |
| title_full | Polyacrylonitrile-based electrospun carbon paper for electrode applications |
| title_fullStr | Polyacrylonitrile-based electrospun carbon paper for electrode applications |
| title_full_unstemmed | Polyacrylonitrile-based electrospun carbon paper for electrode applications |
| title_short | Polyacrylonitrile-based electrospun carbon paper for electrode applications |
| title_sort | polyacrylonitrile based electrospun carbon paper for electrode applications |
| url | http://hdl.handle.net/1721.1/79582 https://orcid.org/0000-0002-4558-245X https://orcid.org/0000-0001-8137-1732 |
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