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The Reduction of Oxygen on Pt ‐ TiO2 Coated Ti Electrodes in Alkaline Solution
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The Reduction of Oxygen on Pt ‐ TiO2 Coated Ti Electrodes in Alkaline Solution
The Reduction of Oxygen on Pt ‐ TiO2 Coated Ti Electrodes in Alkaline Solution
K. Tammeveski
K. Tammeveski
TT
T. Tenno
T. Tenno
AR
A. Rosental
A. Rosental
PT
P. Talonen
P. Talonen
L.‐S. Johansson
L.‐S. Johansson
LN
L. Niinistö
L. Niinistö
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1 February 1999
journal article
Published by
The Electrochemical Society
in
Journal of the Electrochemical Society
Vol. 146
(2)
,
669-676
https://doi.org/10.1149/1.1391660
Abstract
The electrochemical reduction of was studied on and coated Ti electrodes using the rotating disk electrode technique. The coatings were prepared by the thermal decomposition method in the Pt composition range 10–100 wt %. Tafel plots with two distinct slope regions were observed for the reduction of on the electrodes of high Pt content. The electrocatalytic activity toward oxygen reduction decreased remarkably for the electrodes containing less than 35% Pt. The activity decrease was explained by an electrode resistance increase at lower Pt contents. Cyclic voltammetric measurements revealed that the electrode behavior was strongly dependent on the Pt content in the coating. The surface of electrodes was characterized by X‐ray diffraction, scanning electron microscopy, and X‐ray photoelectron spectroscopy. © 1999 The Electrochemical Society. All rights reserved.
Keywords
BEHAVIOR
ELECTROCHEMICAL REDUCTION
OXYGEN
COATED
PT CONTENT
TI ELECTRODES
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Cited by 50 articles