Title

Preparation of Macroporous Conductive Carbon Aerogels from Pyrolysis of Isocyanate-Crosslinked Resorcinol Formaldehyde Aerogels

Abstract

Carbon aerogels, a new class of nanostructured porous materials, are derived from organic precursors like resorcinol-formaldehyde (RF) aerogels via pyrolysis. Both mesoporous and macroporous carbon aerogels are used in many commercial applications such as separating media in HPLC columns, supercapacitors, as anodes in lithium batteries, as non reflective materials, and as new materials for hydrogen storage. In order to incorporate macroporosity, typically, templating agents like mesoporous silica or polymer beads are being used. Here, we present the crosslinking of resorcinol formaldehyde gels with isocyanate oligomers for preparation of carbon aerogels in a time efficient process that does not involve the use of templating agents. The carbon aerogels thus prepared exhibit macroporosity and enhanced electrical conductivity.

Meeting Name

235th ACS National Meeting (2008: Apr. 6-10, New Orleans, LA)

Department(s)

Chemistry

International Standard Book Number (ISBN)

9780841269859

International Standard Serial Number (ISSN)

0065-7727

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2008 American Chemical Society (ACS), All rights reserved.

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