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.
Worsley, Marcus A., et al. "High-density 3D graphene-based monolith and related materials, methods, and devices." US 9,601,226, United States Patent and Trademark Office, Mar. 2017.
Worsley, Marcus A., Baumann, Theodore F., Biener, Juergen, et al., "High-density 3D graphene-based monolith and related materials, methods, and devices," US 9,601,226, issued March 21, 2017.
@misc{osti_1347564,
author = {Worsley, Marcus A. and Baumann, Theodore F. and Biener, Juergen and Charnvanichborikarn, Supakit and Kucheyev, Sergei and Montalvo, Elizabeth and Shin, Swanee and Tylski, Elijah},
title = {High-density 3D graphene-based monolith and related materials, methods, and devices},
annote = {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.},
url = {https://www.osti.gov/biblio/1347564},
place = {United States},
year = {2017},
month = {03},
note = {US Patent