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Faculty of Sciences
Document Details
Document Type
:
Article In Journal
Document Title
:
Ordered Mesoporous Carbon Electrodes for Li-O-2 Batteries
Ordered Mesoporous Carbon Electrodes for Li-O-2 Batteries
Document Language
:
English
Abstract
:
Ordered mesoporous carbon (OMC) with highly ordered pore channels was applied as an oxygen-side electrode for a Li-O-2 battery. To evaluate the effect of the pore channel size on battery performance, we employed OMCs possessing two different pore sizes (6 and 17 nm). When cycled at a current density of 200 mA g(carbon)(-1), the OMC electrodes reduced polarization in the oxygen evolution reaction by 0.1 V compared to those consisting of conventional super P carbon electrode. X-ray diffraction and transmission electron microscopy of the discharged oxygen electrodes provided evidence for the formation of amorphous Li2O2, a product of the oxygen reduction reaction, inside the OMC pores rather than on the electrode surface as in the case of the super P electrode. The OMC electrodes were also effective at high current densities (500 mA g(carbon)(-1) and 1000 mA g(carbon)(-1)).
ISSN
:
1944-8244
Journal Name
:
ACS APPLIED MATERIALS & INTERFACES
Volume
:
5
Issue Number
:
24
Publishing Year
:
1434 AH
2013 AD
Article Type
:
Article
Added Date
:
Sunday, July 16, 2017
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
J Park
Park, J
Researcher
J Lee
Lee, J
Researcher
c Yoon
Yoon, c
Researcher
y Sun
Sun, y
Researcher
Files
File Name
Type
Description
42019.pdf
pdf
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