A Caltech Library Service

Hydrogen Evolution on Hydrophobic Aligned Carbon Nanotube Arrays

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.

[img] Video (AVI) - Supplemental Material
See Usage Policy.


Use this Persistent URL to link to this item:


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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Daraio, Chiara0000-0001-5296-4440
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
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Army Research Office (ARO)UNSPECIFIED
Caltech Environmental Analysis CenterUNSPECIFIED
Subject Keywords:hydrophobic carbon nanotubes; hydrogen sorting; water electrolysis; gas chromatography
Issue or Number:12
Record Number:CaltechAUTHORS:20100122-113115999
Persistent URL:
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.
ID Code:17286
Deposited By: Tony Diaz
Deposited On:25 Jan 2010 17:54
Last Modified:03 Oct 2019 01:25

Repository Staff Only: item control page