Local Structure of Nanocrystalline Ru1-xNixO2-delta Dioxide and Its Implications for Electrocatalytic Behavior-An XPS and XAS Study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F09%3A00340654" target="_blank" >RIV/61388955:_____/09:00340654 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Local Structure of Nanocrystalline Ru1-xNixO2-delta Dioxide and Its Implications for Electrocatalytic Behavior-An XPS and XAS Study
Original language description
Chemical composition, crystal structure, as well as short-range atomic arrangement of nanocrystalline Ru1-xNixO2-delta oxides with x ranging between 0 and 0.3 were studied using energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy(XPS), and X-ray absorption spectroscopy (XAS). The prepared materials form single-phase nanocrystals with rutile structure. Regardless of the chemical composition, the surface of Ru1-xNixO2-delta oxides is Ni-enriched with respect to overall chemical composition. According to both XPS and XANES, the oxidation state of Ru remains +4 in the studied materials. Ni ions are present in both divalent and trivalent states with the fraction of trivalent ions decreasing with increasing Ni content. The refinement of local structure using EXAFS data based on Ru-K and Ni-K edge absorption spectra shows that Ru preserves local arrangement characteristic for ruthenium dioxide.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA400400906" target="_blank" >IAA400400906: Nanocrystalline oxides for selective anodic electrocatalysi</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry C
ISSN
1932-7447
e-ISSN
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Volume of the periodical
113
Issue of the periodical within the volume
52
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
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UT code for WoS article
000272936400031
EID of the result in the Scopus database
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