X-ray Crystal Truncation Rod Studies of Surface Oxidation and Reduction on Pt(111)
Abstract
Here, we present X-ray crystal truncation rods measurements of Pt(111) surface under electrochemical conditions. Analyses of crystal truncation rods reveal that surface oxide formation buckles the top surface layer of platinum to two different heights at the potential (0.95 V vs RHE) below the so-called place-exchange potential. While the anti-Bragg intensity, sensitive to the top surface layer, drops in response to the anodic charge transfers, its responses to the cathodic charge transfers are significantly delayed. Implications to the surface oxidation and reduction behaviors are discussed.
- Authors:
-
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Safarik Univ., Kosice (Slovakia)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1352615
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physical Chemistry. C
- Additional Journal Information:
- Journal Volume: 120; Journal Issue: 29; Journal ID: ISSN 1932-7447
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Liu, Yihua, Barbour, Andi, Komanicky, Vladimir, and You, Hoydoo. X-ray Crystal Truncation Rod Studies of Surface Oxidation and Reduction on Pt(111). United States: N. p., 2016.
Web. doi:10.1021/acs.jpcc.6b00492.
Liu, Yihua, Barbour, Andi, Komanicky, Vladimir, & You, Hoydoo. X-ray Crystal Truncation Rod Studies of Surface Oxidation and Reduction on Pt(111). United States. https://doi.org/10.1021/acs.jpcc.6b00492
Liu, Yihua, Barbour, Andi, Komanicky, Vladimir, and You, Hoydoo. Fri .
"X-ray Crystal Truncation Rod Studies of Surface Oxidation and Reduction on Pt(111)". United States. https://doi.org/10.1021/acs.jpcc.6b00492. https://www.osti.gov/servlets/purl/1352615.
@article{osti_1352615,
title = {X-ray Crystal Truncation Rod Studies of Surface Oxidation and Reduction on Pt(111)},
author = {Liu, Yihua and Barbour, Andi and Komanicky, Vladimir and You, Hoydoo},
abstractNote = {Here, we present X-ray crystal truncation rods measurements of Pt(111) surface under electrochemical conditions. Analyses of crystal truncation rods reveal that surface oxide formation buckles the top surface layer of platinum to two different heights at the potential (0.95 V vs RHE) below the so-called place-exchange potential. While the anti-Bragg intensity, sensitive to the top surface layer, drops in response to the anodic charge transfers, its responses to the cathodic charge transfers are significantly delayed. Implications to the surface oxidation and reduction behaviors are discussed.},
doi = {10.1021/acs.jpcc.6b00492},
journal = {Journal of Physical Chemistry. C},
number = 29,
volume = 120,
place = {United States},
year = {Fri Feb 26 00:00:00 EST 2016},
month = {Fri Feb 26 00:00:00 EST 2016}
}
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