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O 2 Reduction on an Ink‐Type Rotating Disk Electrode Using Pt Supported on High‐Area Carbons

Gojković, S. Lj., Zečević, S. K., Savinell, R. F.·1998·Journal of The Electrochemical Society

Abstract

The kinetics of O 2 reduction has been examined on an ink‐type electrode made with Pt supported on high‐area carbon. Electrocatalysts with 5–40 mass % of Pt on Black Pearls, Vulcan XC‐72, and Shawinigan acetylene black carbons were used. Experiments were performed in 0.1 M solutions of H 2 SO 4 , H 3 PO 4 , HClO 4 , and NaOH. Kinetic parameters of O 2 reduction were found to be similar as on a smooth Pt surface. No influence of the type of carbon was observed. The mass activity of O 2 reduction was independent of Pt loading at low currents, but at high currents the mass activity decreased with an increase in Pt loading. It is suggested that mass‐transfer limitations are responsible for the different influence of Pt loading on mass activity at low and high currents. Reproducibility of the measurements on the ink electrode was satisfactory, and it is recommended for investigations of dispersed electrocatalysts.

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Metadata

Authors
Gojković, S. L., Zečević, S. K., & Savinell, R. F.
Venue
Journal of The Electrochemical Society
Published
1998-11-01
Volume
145
Issue
11
Pages
3713-3720
ISSN
  • 0013-4651 (ISSN-L)
  • 1945-7111
OpenAlex
W2111099931
Cited by
170
References
0
FWCI
4.22
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: O 2 Reduction on an Ink‐Type Rotating Disk Electrode Using Pt Supported on High‐Area Carbons. https://app.cochat.ai/papers/10.1149/1.1838864
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Gojković, S. L., Zečević, S. K., & Savinell, R. F. (1998). O 2 Reduction on an Ink‐Type Rotating Disk Electrode Using Pt Supported on High‐Area Carbons. Journal of The Electrochemical Society. https://doi.org/10.1149/1.1838864

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