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2015 | 2 | 1 |
Article title

In situ time-resolved HEROS study of Pt electronic
structure during regenerative H2-O2 cycles

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Content
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Languages of publication
EN
Abstracts
EN
We report an in situ time-resolved high-energy
resolution off-resonant spectroscopy (HEROS) study with
unprecedented 100 ms time resolution revealing the
unoccupied electronic states of platinum during regenerative
oxidation and reduction cycles. The study depicted a
slowed oxidation step in comparison with reduction. The
oxidation cycle is composed of two characteristic stages,
namely adsorption of dissociated oxygen followed by partial
oxidation of Pt subsurface. Besides improved temporal
resolution of the experiment, the detected reduction process
of platinum showed no intermediate features and was
completed in a single step within a few seconds.
Publisher

Year
Volume
2
Issue
1
Physical description
Dates
online
17 - 4 - 2015
accepted
23 - 3 - 2015
received
27 - 2 - 2015
Contributors
author
  • Institute of Physical Chemistry,
    Polish Academy of Sciences, Warsaw, Poland; Ångstrom Laboratory,
    Department of Chemistry, Uppsala University, Uppsala, Sweden
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_1515_recat-2015-0004
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