dc.contributor.advisor |
Baek, Jong-Beom |
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dc.contributor.author |
Sohn, Gyung-Joo |
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dc.date.accessioned |
2024-05-23T15:55:25Z |
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dc.date.available |
2024-05-23T15:55:25Z |
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dc.date.issued |
2012-02 |
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dc.description.abstract |
We report water-soluble multi-walled carbon nanotubes (MWCNT), to which sulfonated hyperbranched poly(ether-ketone) (SHPEK) is grafted. To endorse sufficient water affinity to MWCNT, dendritic hyperbranched poly(ether-ketone) (HPEK) was first covalently grafted to the surface of MWCNT via Friedel-Crafts acylation reaction. The resultant HPEK grafted MWCNT (HPEK-g-MWCNT) was subsequently sulfonated in chlorosulfonic acid to produce SHPEK-g-MWCNT, which is soluble well in water showing Zeta potential value of -57.8 mV (good stability). The SHPEK-g-MWCNT paper prepared from a simple filtration of aqueous dispersion has sheet resistance as low as 63 Ω/sq and high electrocatalytic activity for oxygen reduction reaction (ORR). Thus, the new design and synthetic methodologies suggest that water-dispersible MWCNT, which is a new class of high performance cathode material for ORR. |
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dc.description.degree |
Master |
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dc.description |
Graduate School of UNIST (by School, 2010-2011) Interdisciplinary School of Green Energy |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/82690 |
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dc.identifier.uri |
http://unist.dcollection.net/jsp/common/DcLoOrgPer.jsp?sItemId=000001230409 |
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dc.language |
eng |
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dc.publisher |
Ulsan National Institute of Science and Technology (UNIST) |
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dc.rights.embargoReleaseDate |
9999-12-31 |
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dc.rights.embargoReleaseTerms |
9999-12-31 |
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dc.title |
Sulfonated Poly(ether ketone) Grafted Multi-Walled Carbon Nanotubes |
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dc.type |
Thesis |
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