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Self-Assembled Recyclable Hierarchical Bucky Aerogels

Karakaya, Mehmet and Saini, Deepika and Podila, Ramakrishna and Skove, Malcolm J. and Rao, Apparao M. and Thevamaran, Ramathasan and Daraio, Chiara (2015) Self-Assembled Recyclable Hierarchical Bucky Aerogels. Advanced Engineering Materials, 17 (7). pp. 990-994. ISSN 1438-1656.

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We describe a simple method for the scalable synthesis of three-dimensional, elastic, and recyclable multi-wall carbon nanotube (MWCNT) based light weight (density <1 g cm^(−3)) bucky-aerogels (BAGs) that are capable of efficiently absorbing non-polar solvents and separating oil-in-water emulsions. Our facile synthesis involves the self-assembly of MWCNTs and carbon fibers into a multi-layered, highly porous, and hierarchical structure that can be easily flexed, compressed, or burnt without any noticeable changes in its structure and absorption capacity. The BAG surface absorbs non-polar solvents efficiently up to ≈20 times its own weight due to its superhydrophobic nature arising from the presence of MWCNTs. Furthermore, BAGs exhibit excellent resilience to impact by recovering more than 70% of the deformation. The energy dissipated by BAGs at 80% compressive strain is in the order of 500 kJ m^(−3), which is nearly 50 times more than the energy dissipated by commercial foams with similar densities.

Item Type:Article
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URLURL TypeDescription Information
Karakaya, Mehmet0000-0002-4475-4352
Podila, Ramakrishna0000-0003-0472-2361
Thevamaran, Ramathasan0000-0001-5058-6167
Daraio, Chiara0000-0001-5296-4440
Additional Information:© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. Received: September 10, 2014; Final Version: October 16, 2014; Published online: November 20, 2014. A.M.R. acknowledges the support from US National Science Foundation grant CMMI-1246800 award for scalable nano-manufacturing. R. P. and A. M. R. thank Clemson University TIGER grant for supporting this work. C.D. and R.T. acknowledge support from the Institute for Collaborative Biotechnologies under contract W911NF-09-D-0001 with the Army Research Office.
Funding AgencyGrant Number
Army Research Office (ARO)W911NF-09-D-0001
Issue or Number:7
Record Number:CaltechAUTHORS:20150807-074704258
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Official Citation:Karakaya, M., Saini, D., Podila, R., Skove, M. J., Rao, A. M., Thevamaran, R. and Daraio, C. (2015), Self-Assembled Recyclable Hierarchical Bucky Aerogels. Adv. Eng. Mater., 17: 990–994. doi: 10.1002/adem.201400414
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59298
Deposited By: Tony Diaz
Deposited On:07 Aug 2015 16:11
Last Modified:03 Oct 2019 08:45

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