Combinatorial electrochemical synthesis and screening of Pt-WO3 catalysts for electro-oxidation of methanol

Title
Combinatorial electrochemical synthesis and screening of Pt-WO3 catalysts for electro-oxidation of methanol
Authors
Jayaraman, S.; Baeck, S.H.; Jaramillo, T.F.; Kleiman-Shwarsctein, A.; McFarland, E.W.
Keywords
Pt-WO3, electrochemical synthesis, electro-oxidation
Issue Date
2005-06
Publisher
AMER INST PHYSICS
Abstract
An automated system for high-throughput electrochemical synthesis and screening of fuel cell electro-oxidation catalysts is described. This system consists of an electrode probe that contains counter and reference electrodes that can be positioned inside an array of electrochemical cells created within a polypropylene block. The electrode probe is attached to an automated of X-Y-Z motion system. An externally controlled potentiostat is used to apply the electrochemical potential to the catalyst substrate. The motion and electrochemical control are integrated using a user-friendly software interface. During automated synthesis the deposition potential and/or current may be controlled by a pulse program triggered by the software using a data acquisition board. The screening includes automated experiments to obtain cyclic voltammograms. As an example, a platinum-tungsten oxide (Pt-WO3) library was synthesized and characterized for reactivity towards methanol electro-oxidation. (c) 2005 American Institute of Physics.
URI
http://dspace.inha.ac.kr/handle/10505/1907
ISSN
0034-6748
Appears in Collections:
College of Engineering(공과대학) > Chemical Engineering (화학공학) > Journal Papers, Report (화학공학 논문, 보고서)
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