Carbon Microspheres as Supercapacitors
- Title
- Carbon Microspheres as Supercapacitors
- Author
- 방진호
- Issue Date
- 2011-10
- Publisher
- American Chemical Society
- Citation
- Journal of Physical Chemistry C, v. 115, NO. 42, Page. 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.
- URI
- https://pubs.acs.org/doi/10.1021/jp207135ghttps://repository.hanyang.ac.kr/handle/20.500.11754/181782
- ISSN
- 1932-7447;1932-7455
- DOI
- 10.1021/jp207135g
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
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