Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 4, Issue 8, Pages 2826-2830Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1ee01198g
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Funding
- National Science Foundation of China [50802112, 21073233, 20903009]
- National Key Basic Research and Development Program [2009CB220100]
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Graphene oxide, an intermediate during graphene synthesis by a modified Hummers's method, exhibits higher capacitance, up to 189 F g(-1), than graphene due to an additional pseudo-capacitance effect of attached oxygen-containing functional groups on its basal planes. Taking its higher capacitance, lower cost and shorter processing time into consideration, graphene oxide may be a better choice than graphene as an electrode material for supercapacitors.
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