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Title: High-density 3D graphene-based monolith and related materials, methods, and devices

A composition comprising at least one high-density graphene-based monolith, said monolith comprising a three-dimensional structure of graphene sheets crosslinked by covalent carbon bonds and having a density of at least 0.1 g/cm.sup.3. Also provided is a method comprising: preparing a reaction mixture comprising a suspension and at least one catalyst, said suspension selected from a graphene oxide (GO) suspension and a carbon nanotube suspension; curing the reaction mixture to produce a wet gel; drying the wet gel to produce a dry gel, said drying step is substantially free of supercritical drying and freeze drying; and pyrolyzing the dry gel to produce a high-density graphene-based monolith. Exceptional combinations of properties are achieved including high conductive and mechanical properties.
Inventors:
; ; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1347564
Assignee:
Lawrence Livermore National Security, LLC LLNL
Patent Number(s):
9,601,226
Application Number:
13/844,340
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2013 Mar 15
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

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