Sulfonated Poly(ether ketone) Grafted Multi-Walled Carbon Nanotubes
Cited 0 times inCited 0 times in
- Sulfonated Poly(ether ketone) Grafted Multi-Walled Carbon Nanotubes
- Sohn, Gyung-Joo
- Baek, Jong-Beom
- Issue Date
- Graduate School of UNIST
- 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.
- Energy Conversion & Storage
- ; Go to Link
- Appears in Collections:
- Files in This Item:
Sulfonated Poly(ether ketone).pdf
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.