Brick-and-Mortar Self-Assembly Approach to Graphitic Mesoporous Carbon Nanocomposites

Journal Article · Sat Jan 01 04:00:00 EST 2011 · Advanced Functional Materials

OSTI ID:1044713

Dai, Sheng ^[1]; Fulvio, Pasquale F ^[1]; Mayes, Richard T ^[1]; Wang, Xiqing ^[1]; Mahurin, Shannon Mark ^[1]; Bauer, Christopher ^[1]; Presser, Volker ^[2]; Mcdonough, John ^[2]; Gogotsi, Yury ^[1]

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1. ORNL
2. Drexel University

Mesoporous carbon materials do not have sufficient ordering at the atomic scale to exhibit good electronic conductivity. To date, mesoporous carbons having uniform mesopores and high surface areas have been prepared from partially-graphitizable precursors in the presence of templates. High temperature thermal treatments above 2000 C, which are usually required to increase conductivity, result in a partial or total collapse of the mesoporous structures and reduced surface areas induced by growth of graphitic domains, limiting their applications in electric double layer capacitors and lithium-ion batteries. In this work, we successfully implemented a 'brick-and-mortar' approach to obtain ordered graphitic mesoporous carbon nanocomposites with tunable mesopore sizes below 850 C without using graphitization catalysts or high temperature thermal treatments. Phenolic resin-based mesoporous carbons act as mortar to highly conductive carbon blacks and carbon onions (bricks). The capacitance and resistivity of final materials can be tailored by changing the mortar to brick ratios.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1044713
• Journal Information: Advanced Functional Materials, Journal Name: Advanced Functional Materials Journal Issue: 12 Vol. 21; ISSN 1616-301X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BRICKS
CAPACITANCE
CAPACITORS
CARBON
CARBON BLACK
CATALYSTS
ELECTRIC CONDUCTIVITY
GRAPHITIZATION
MORTARS
SURFACE AREA