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Carbon composition with hierarchical porosity, and methods of preparation

Patent ·
OSTI ID:1160263

A method for fabricating a porous carbon material possessing a hierarchical porosity, the method comprising subjecting a precursor composition to a curing step followed by a carbonization step, the precursor composition comprising: (i) a templating component comprised of a block copolymer, (ii) a phenolic component, (iii) a dione component in which carbonyl groups are adjacent, and (iv) an acidic component, wherein said carbonization step comprises heating the precursor composition at a carbonizing temperature for sufficient time to convert the precursor composition to a carbon material possessing a hierarchical porosity comprised of mesopores and macropores. Also described are the resulting hierarchical porous carbon material, a capacitive deionization device in which the porous carbon material is incorporated, as well as methods for desalinating water by use of said capacitive deionization device.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
8,865,351
Application Number:
13/046,836
OSTI ID:
1160263
Country of Publication:
United States
Language:
English

References (24)

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Block-Copolymer assisted synthesis of hierarchical carbon monoliths suitable as supercapacitor electrodes journal January 2010
Electrosorption capacitance of nanostructured carbon-based materials journal October 2006
An Aqueous Cooperative Assembly Route To Synthesize Ordered Mesoporous Carbons with Controlled Structures and Morphology September 2006
Carbon aerogels for electrochemical applications journal April 1998
Ordered Mesoporous Carbons journal May 2001
Synthesis of Mesoporous Carbon Materials via Enhanced Hydrogen-Bonding Interaction journal April 2006
Facile synthesis of ordered mesoporous carbons from F108/resorcinol–formaldehyde composites obtained in basic media journal January 2007
Biobased composites from glyoxal–phenolic resins and sisal fibers journal March 2010
Generation of Hierarchical Meso- and Macroporous Carbon from Mesophase Pitch by Spinodal Decomposition using Polymer Templates journal November 2007
Dual Phase Separation for Synthesis of Bimodal Meso-/Macroporous Carbon Monoliths journal May 2009
Hierarchical ordered mesoporous carbon from phloroglucinol-glyoxal and its application in capacitive deionization of brackish water journal January 2010
Capacitive deionization characteristics of nanostructured carbon aerogel electrodes synthesized via ambient drying journal October 2007
Formation of Mesoporous Carbon With a Face-Centered-CubicFdm Structure and Bimodal Architectural Pores From the Reverse Amphiphilic Triblock Copolymer PPO-PEO-PPO journal February 2007
A Facile Aqueous Route to Synthesize Highly Ordered Mesoporous Polymers and Carbon Frameworks with Iad Bicontinuous Cubic Structure journal October 2005
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Synthesis of ordered mesoporous carbons with channel structure from an organic–organic nanocomposite journal January 2005
Recent Progress in the Synthesis of Porous Carbon Materials journal August 2006
Treatment of brackish produced water using carbon aerogel-based capacitive deionization technology journal May 2008

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