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Carbon Microspheres as Supercapacitors

Title
Carbon Microspheres as Supercapacitors
Author
방진호
Issue Date
2011-10
Publisher
AMERICAN CHEMICAL SOCIETY
Citation
The journal of physical chemistry part C, 115(42), 20481-20486
Abstract
Carbon microstructures fabricated by ultrasonic spray pyrolysis (USP) of aqueous precursors were tested as supercapacitors. USP carbons (USP-C) possess unique physicochemical characteristics, including substantial microporosity and high surface concentrations of oxygenated functional groups. We find that USP-Cs have higher electrochemical double-layer capacitance compared with other carbon structures. Porous carbon microspheres prepared from USP of lithium dichloroacetate, lithium/potassium propiolate, or sucrose produce electrochemical double layer capacitors (EDLCs) that have gravimetric capacitances of 185, 341, and 360 F/g, respectively. Microstructural and chemical analyses of the carbon materials suggest that the observed capacitance is related to the effects of surface functionality. Graphic Abstract ACS Electronic Supporting Info
URI
https://pubs.acs.org/doi/abs/10.1021/jp207135g
ISSN
1932-7447
DOI
10.1021/jp207135g
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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