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High surface area, high permeability carbon monoliths [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
7 pages : digital, PDF file
Additional Creators
Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The goal of this work is to prepare carbon monoliths having precisely tailored pore size distribution. Prior studies have demonstrated that poly(acrylonitrile) can be processed into a precursor having tailored macropore structure. Since the macropores were preserved during pyrolysis, this synthetic process provided a route to porous carbon having macropores with size =0.1 to 10μm. No micropores of size <2 nm could be detected in the carbon, however, by nitrogen adsorption. In the present work, the authors have processed a different polymer, poly(vinylidene chloride) into a macroporous precursor, Pyrolysis produced carbon monoliths having macropores derived from the polymer precursor as well as extensive microporosity produced during the pyrolysis of the polymer. One of these carbons had BET surface area of 1,050 m²/g and about 1.2 cc/g total pore volume, with about 1/3 of the total pore volume in micropores and the remainder in 1μm macropores. No mesopores in the intermediate size range could be detected by nitrogen adsorption. Carbon materials having high surface area as well as micron size pores have potential applications as electrodes for double layer supercapacitors containing liquid electrolyte, or as efficient media for performing chemical separations.
Report Numbers
E 1.99:sand--94-1692c
E 1.99: conf-941144--23
conf-941144--23
sand--94-1692c
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/31/1994.
"sand--94-1692c"
" conf-941144--23"
"DE95004555"
"GB0103012"
": Contract 5091-260-2228"
Fall meeting of the Materials Research Society (MRS),Boston, MA (United States),28 Nov - 9 Dec 1994.
Schroeder, J.L.; Lagasse, R.R.
Funding Information
AC04-94AL85000
View MARC record | catkey: 14455610