The Electrochemical Development of Pt(111) Stepped Surfaces and Its Influence on Methanol Electrooxidation
Joint Authors
Zinola, Carlos F.
Faccio, R.
Mombrú, A. W.
Díaz, V.
Teliz, E.
Source
International Journal of Electrochemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-06-30
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The progress in the preparation of new electrode surfaces by electrochemical treatments exhibiting high faradaic efficiencies towards industrial electrocatalytic processes has gained more attention in today's scientific community.
Most of the papers report new catalysts dispersed on different substrates, but some fundamental studies required for electrochemical and physical characterizations are sometimes forgotten.
In this paper, we make a full staging of two electrochemical treatments that can be conducted to enhance the electrocatalytic activity of platinum surfaces, such as, electrofacetting through square wave potential programs and constant cathodic polarizations in the net hydrogen evolution region.
The cathodic treatment applied at −2 V clearly develops (111) stepped planes similarly to the electrofacetting performed after applying the square wave program between 1.40 V and 0.70 V at 2.5 kHz.
The X-ray diffraction patterns of both surfaces as well as on other electrofacetted platinum electrodes are obtained for comparison purposes.
Moreover, the electrocatalytic activity towards methanol electrooxidation also exhibits equivalent coulombic efficiencies and 200% higher than on polycrystalline platinum as demonstrated by linear sweep voltammetry and potentiostatic current decays.
American Psychological Association (APA)
Teliz, E.& Díaz, V.& Faccio, R.& Mombrú, A. W.& Zinola, Carlos F.. 2011. The Electrochemical Development of Pt(111) Stepped Surfaces and Its Influence on Methanol Electrooxidation. International Journal of Electrochemistry،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-460620
Modern Language Association (MLA)
Teliz, E.…[et al.]. The Electrochemical Development of Pt(111) Stepped Surfaces and Its Influence on Methanol Electrooxidation. International Journal of Electrochemistry No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-460620
American Medical Association (AMA)
Teliz, E.& Díaz, V.& Faccio, R.& Mombrú, A. W.& Zinola, Carlos F.. The Electrochemical Development of Pt(111) Stepped Surfaces and Its Influence on Methanol Electrooxidation. International Journal of Electrochemistry. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-460620
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-460620