期刊
CARBON
卷 50, 期 10, 页码 3845-3853出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2012.04.026
关键词
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资金
- multi-disciplinary Undergraduate Research Initiative (MURI) of Indiana University Purdue University Indianapolis (IUPUI)
- Center for Functional Nanomaterials of Brookhaven National Laboratory (US-DOE) [DE-AC02-98CH10886]
A method has been developed for synthesizing high-surface-area carbon nanoparticle/graphene composites. Functionalized carbon nanoparticles were anchored to the graphene planes and function as spacers to prevent the restacking of graphene sheets during drying. The composite has a layered structure in which functionalized carbon nanoparticles are sandwiched between graphene stacks. This layering leads to a porous structure with a specific surface area as high as 1256 m(2)/g. Such a structure provides easy access to both sides of the graphene for either gas or liquid species and allows their fast transfer. A specific capacitance as high as 324.6 F/g at a current density of 0.3 A/g was achieved using the composites in a supercapacitor. (c) 2012 Elsevier Ltd. All rights reserved.
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