File Download
There are no files associated with this item.
SFX Link
- Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
- Shin, Tae Joo
- Synchrotron Radiation Research Lab.
Views & Downloads
Detailed Information
Cited time in 
Cited time in 
Cited time in
Metadata Downloads
Graphene-oxide-intercalated layered manganese oxides as an efficient oxygen reduction reaction catalyst in alkaline media
- Author(s)
- Park, Hee-Young, Shin, Tae Joo, Joh, Han-Ik, Jang, Jong Hyun, Ahn, Docheon, Yoo, Sung Jong
- Issued Date
- 2014-04
- Citation
- ELECTROCHEMISTRY COMMUNICATIONS, v.41, pp.35 - 38
- Abstract
- A graphene-oxide-intercalated layered manganese oxide (GO-HLMO) was prepared by intercalating graphene oxide (GO) into the protonated layered manganese oxide (HLMO,H0.32MnO2), and its enhanced activity towards oxygen reduction reactions (ORR) in alkaline media was demonstrated. As a result of GO intercalation, decreases in interlayer distance and in Mn oxidation state were experimentally confirmed by X-ray diffraction (XRD), X-ray absorption near-edge structure (XANES), and X-ray photoelectron spectroscopic (XPS) analysis. Cyclic voltammetry (CV) analysis indicated that GO-HLMO had more accessible Mn( III)/Mn(IV) sites than HLMO, which probably resulted in the large enhancement in ORR activity in alkaline media, from 0.236 A g(-1) (HLMO) to 0.735 A g(-1) (GO-HLMO) at 0.8 V vs. RHE.
- Publisher
- ELSEVIER SCIENCE INC
- ISSN
- 1388-2481
- Keyword (Author)
- Fuel cell, Oxygen reduction reaction, Layered MnO2, Graphene oxide intercalation
- Keyword
- NANOPARTICLES, CATHODE
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.