Misra, Abha and Giri, Jyotsnendu and Daraio, Chiara (2009) Hydrogen Evolution on Hydrophobic Aligned Carbon Nanotube Arrays. ACS Nano, 3 (12). pp. 3903-3908. ISSN 1936-086X http://resolver.caltech.edu/CaltechAUTHORS:20100122-113115999
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We investigate for the first time hydrophobic carbon nanotube-based electrochemical cells as an alternative solution to hydrogen sorting. We show that the electrically conducting surface of the nanotube arrays can be used as a cathode for hydrogen generation and absorption by electrolyzing water. We support our findings with Raman and gas chromatography measurements. These results suggest that carbon nanotube forests, presenting a unique combination of hydrophobicity and conductivity, are suitable for application in fuel cells and microelectromechanical devices.
|Additional Information:||© 2009 American Chemical Society. Received for review July 27, 2009 and accepted October 14, 2009. Published online November 24, 2009. We acknowledge funding from the Army Research Office, Institute for Collaborative Biotechnologies (ICB) for support of this project. This work benefited from use of the Caltech Environmental Analysis Centre (EAS), GC/MS facility. We thank Dr. N. F. Dalleska for helpful discussions. Supporting Information Available: The digital movie-clip captured during experiments shows water electrolysis on the hydrophobic carbon nanotubes surface. The hydrogen evolution can be seen to be bubbling from the CNT cathode surface, and oxygen bubbles evolve at the anode. This material is available free of charge via the Internet at http://pubs.acs.org.|
|Group:||Kavli Nanoscience Institute|
|Subject Keywords:||hydrophobic carbon nanotubes; hydrogen sorting; water electrolysis; gas chromatography|
|Official Citation:||Hydrogen Evolution on Hydrophobic Aligned Carbon Nanotube Arrays Abha Misra, Jyotsnendu Giri, Chiara Daraio ACS Nano 2009 3 (12), 3903-3908|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||25 Jan 2010 17:54|
|Last Modified:||26 Dec 2012 11:43|
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