Carbon Nanotube Free-Standing Membrane of Pt/SWNTs as Catalyst Layer in Hydrogen Fuel Cells
Jason M. Tang A D , Kurt Jensen B D , Wenzhen Li B D , Mahesh Waje B D , Paul Larsen B D , Palanisamy Ramesh A , Mikhail E. Itkis A , Yushan Yan A B D E and Robert C. Haddon A C D EA Center for Nanoscale Science and Engineering, University of California, Riverside, Riverside, CA 92521-0403, USA.
B College of Engineering—Center for Environmental Research and Technology, University of California, Riverside, Riverside, CA 92521-0403, USA.
C Department of Chemistry, University of California, Riverside, Riverside, CA 92521-0403, USA.
D Department of Chemical & Environmental Engineering, University of California, Riverside, Riverside, CA 92521-0403, USA.
E Corresponding authors. Email: haddon@ucr.edu; Yushan.Yan@ucr.edu
Australian Journal of Chemistry 60(7) 528-532 https://doi.org/10.1071/CH06411
Submitted: 1 November 2007 Accepted: 27 February 2007 Published: 9 July 2007
Abstract
A simple and promising fuel-cell architecture is demonstrated using a carbon nanotube free-standing membrane (CNTFSM) made from Pt supported on purified single-walled carbon nanotubes (Pt/SWNT), which act as the catalyst layer in a hydrogen proton exchange membrane fuel cell without the need for Nafion in the catalyst layer. The CNTFSM made from Pt/SWNT at a loading of 0.082 mg Pt cm–2 exhibits higher performance with a peak power density of 0.675 W cm–2 in comparison with a commercially available E-TEK electrocatalyst made of Pt supported on XC-72 carbon black, which had a peak power density of 0.395 W cm–2 at a loading of 0.084 mg Pt cm–2 also without Nafion in the catalyst layer.
Acknowledgments
This research was supported by DOD/DARPA/DMEA under Award no. DMEA90–02–2-0216.
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