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Optical Measurements of Platinum Based Electrocatalysts for the Electrooxidation of Methanol
Author(s) -
Gruber K.,
Kronberger H.,
Fafilek G.,
Nauer G.,
Besenhard J.O.
Publication year - 2003
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.200320229
Subject(s) - electrochemistry , methanol , platinum , catalysis , electrode , electrocatalyst , inorganic chemistry , materials science , chemistry , chemical engineering , analytical chemistry (journal) , chromatography , organic chemistry , engineering
In a combinatorial electrochemistry experiment quinine was used as a pH sensitive fluorescing indicator to detect the catalytic activity of methanol oxidation catalysts. During electrochemical experiments the surface of the electrode array was monitored with a CCD camera. The dependence of the intensity of the fluorescence on the applied potential was used as an analytical tool; to investigate the electrochemical performance of Pt based electrocatalysts, for the electrooxidation of methanol, in both short and long term tests.