Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 41, Issue -, Pages 35-38Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2014.01.019
Keywords
Fuel cell; Oxygen reduction reaction; Layered MnO2; Graphene oxide intercalation
Categories
Funding
- Global Frontier R&D Program on Center for Multiscale Energy System [2012M3A6A7054283]
- Korea CCS RD Center (KCRC) [2013M1A8A1038315]
- NRF under the Ministry of Science, ICT Future, Korea
- NRF
- Korea government, MOE [2012R1A1A2007797]
- National Research Foundation of Korea [2012R1A1A2007797] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
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. (C) 2014 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available