Carbon Nanotube Film by Filtration as Cathode Catalyst Support for Proton-Exchange Membrane Fuel Cell

A simple filtration method is developed to prepare a partially oriented superhydrophobic film of carbon nanotubes (CNTs) that have been catalyzed with uniform small Pt nanoparticles (2.8 nm) at high metal loading (30 wt %). A proton-exchange membrane fuel cell with the oriented CNT film as the catho...

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Bibliographic Details
Published in:Langmuir 2005-10, Vol.21 (21), p.9386-9389
Main Authors: Li, Wenzhen, Wang, Xin, Chen, Zhongwei, Waje, Mahesh, Yan
Format: Article
Language:English
Subjects:
Applied sciences
Catalysis
Chemistry
Colloidal state and disperse state
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
General and physical chemistry
Membranes
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:A simple filtration method is developed to prepare a partially oriented superhydrophobic film of carbon nanotubes (CNTs) that have been catalyzed with uniform small Pt nanoparticles (2.8 nm) at high metal loading (30 wt %). A proton-exchange membrane fuel cell with the oriented CNT film as the cathode achieves higher single-cell performance than those with carbon black and a disordered CNT-film-based cathode probably because of the enhanced electrocatalytic activity of Pt/CNT and improved mass transport within the oriented film.
ISSN:0743-7463
1520-5827
DOI:10.1021/la051124y