Methanol oxidation on polycrystalline Pt and Pt + Ru alloy electrodes

Lakshminarayanan, V.; Sotiropoulos, S.

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3215

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DC Field	Value	Language
dc.contributor.author	Lakshminarayanan, V.	-
dc.contributor.author	Sotiropoulos, S.	-
dc.date.accessioned	2007-07-05T08:36:36Z	-
dc.date.available	2007-07-05T08:36:36Z	-
dc.date.issued	1997	-
dc.identifier.citation	Journal of the Electrochemical Society of India, 1997, Vol.46, p201-213	en
dc.identifier.issn	0013-466X	-
dc.identifier.uri	http://hdl.handle.net/2289/3215	-
dc.description	Restricted Access.	en
dc.description.abstract	The electrooxidation of methanol in acid was studied on polycrystalline Pt and a Pt-Ru 160-401 alloy by arc-melting. The technique used was an alternative type of pulse voltamrnetry where voltammograms were constructed by chronoamperometric data collected alter the application of a potential program on the electrode. The former was chosen such that before each set of measurements the electrode surface was activated and cleaned from the resulting methanolic poison. It was found that on a surface free of poisornous speries dissociative chemisorption involving all electron transfer is the rds over a wide potential region. Also, on a poison-free surface. Pt and Pt-Ru show similar catalytic avtivities at low polarisations whereas Pt-Ru is a better catalyst at high over potentials. In situations where contamination is expected to occur (higher concentrations. longer times) Pt-Ru is always a superior catalyst due to the oxidative removal of the adsorbed poison by surface Ru oxides.	en
dc.format.extent	580922 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	The Electrochemical Society of India	en
dc.rights	1997 The Electrochemical Society of India	en
dc.title	Methanol oxidation on polycrystalline Pt and Pt + Ru alloy electrodes	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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