Published September 30, 2015 | Version v1
Journal article Metadata-only

Effect of anodic polarization on the free-floating parts at Pt/YSZ catalyst electrode

Creators

  • 1. Institut für Physikalische Chemie und Elektrochemie, Leibniz-Universität Hannover, Callinstrasse 3-3a, D-30167 Hannover (Germany)
  • 2. Chemistry Department, Faculty of Science, South Valley University, 83523 Qena (Egypt)
  • 3. Lehrstuhl für Physikalische Chemie II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstrasse 3, D-91058 Erlangen (Germany)

Description

Photoemission electron microscopy (PEEM) was used as spatially resolving method to explore the effect of electrochemical pumping with a positive voltage to porous platinum electrodes interfaced as working electrode to yttrium stabilized zirconia (YSZ). The experiments were conducted under UHV conditions (p ≈ 10−9 mbar). In PEEM a uniform rapid darkening of the Pt surface was observed during anodic polarization followed by the appearance of bright spots on a dark background. The bright spots observed in PEEM images are due to zirconia reduction around electrically isolated Pt islands

Availability note (English)

Available from http://dx.doi.org/10.1016/j.apsusc.2015.01.088

Additional details

Identifiers

DOI
10.1016/j.apsusc.2015.01.088;
PII
S0169-4332(15)00113-0;

Publishing Information

Journal Title
Applied Surface Science
Journal Volume
350
Journal Page Range
p. 156-160
ISSN
0169-4332
CODEN
ASUSEE

Conference

Title
International conference on science and applications of thin films
Acronym
SATF2014
Dates
15-19 Sep 2014
Place
Izmir (Turkey)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47038136
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CATALYSTS; ELECTROCHEMISTRY; ELECTRODES; ELECTRON MICROSCOPY; EMISSION SPECTROSCOPY; INTERFACES; PHOTOELECTRON SPECTROSCOPY; PHOTOEMISSION; PLATINUM; POLARIZATION; POROUS MATERIALS; REDUCTION; SURFACES; YTTRIUM; YTTRIUM OXIDES; ZIRCONIUM OXIDES
Descriptors DEC
CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; ELECTRON SPECTROSCOPY; ELEMENTS; EMISSION; MATERIALS; METALS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PLATINUM METALS; SECONDARY EMISSION; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.