Edge-iodine/sulfonic acid-functionalized graphene nanoplatelets as efficient electrocatalysts for oxygen reduction reaction
Cited 1 times inCited 0 times in
- Edge-iodine/sulfonic acid-functionalized graphene nanoplatelets as efficient electrocatalysts for oxygen reduction reaction
- Baek, Jong Yeol; Jeon, In-Yup; Baek, Jong-Beom
- Issue Date
- ROYAL SOC CHEMISTRYROYAL SOC CHEMISTRY
- JOURNAL OF MATERIALS CHEMISTRY A, v.2, no.23, pp.8690 - 8695
- We report the synthesis of edge-iodine/sulfonic acid-functionalized, graphene nanoplatelets (ISGnPs) via two-step sequential ball-milling of graphite, and their use as electrocatalysts for oxygen reduction reaction (ORR) in fuel cells. Graphite is ball-milled in the presence of iodine to produce the edge-iodine functionalized GnP (IGnP) in the first step and the IGnP is subsequently ball-milled with sulfur trioxide to yield the ISGnP. The resultant ISGnP is highly dispersible in various polar solvents, allowing the fabrication of electrodes for ORR using solution processing. The capacitance and cycle stability of the ISGnP in an alkaline medium are superior to commercial Pt/C and its kinetic electron transfer number (n) is comparable to Pt/C.
- Appears in Collections:
- ECHE_Journal Papers
- Files in This Item:
- There are no files associated with this item.
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.