Journal
CARBON
Volume 49, Issue 7, Pages 2352-2361Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.02.001
Keywords
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Funding
- National Science Foundation [DMI-06200338, CHE-0723002]
- UWM
- UWM Research Growth Initiative
- Lynde and Harry Bradley Foundation
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Stable carbon nanotube (CNT) aerogels were produced by forming a three-dimensional assembly of CNTs in solution to create a stable gel using a chemical cross-linker, followed by a CO2 supercritical drying. Thermal annealing of these aerogels in air can significantly improve their electrical and mechanical properties, and increase their surface area and porosity by re-opening the originally blocked micropores and small mesopores in the as-prepared CNT aerogels. Thermally annealed CNT aerogels are mechanically stable and stiff, highly porous (similar to 99%), and exhibit excellent electrical conductivity (similar to 1-2 S/cm) and large specific surface area (similar to 590-680 m(2)/g). (C) 2011 Elsevier Ltd. All rights reserved.
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