Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: C1.00255 : Molecular Simulations of Graphene-Based Electric Double-Layer Capacitors
Author:
Towards deploying renewable energy sources it is crucial to develop
efficient and cost-effective technologies to store electricity.
Traditional
batteries are plagued by a number of practical problems that at
present
limit their widespread applicability. One possible solution is
represented
by electric double-layer capacitors (EDLCs). To deploy EDLCs at
the large
scale it is necessary to better understand how electrolytes pack
and diffuse
within narrow charged pores. We present here simulation results
for the
concentrated aqueous solutions of NaCl, CsCl, and NaI confined
within
charged graphene-based porous materials. We discuss how the
structure of
confined water, the salt concentration, the ions size, and the
surface
charge density determine the accumulation of electrolytes within
the porous
network. Our results, compared to data available for bulk
systems, are
critical for relating macroscopic observations to molecular-level
properties
of the confined working fluids.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.C1.255
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