Highly Oxidized Platinum Nanoparticles Prepared through Radio-Frequency Sputtering: Thermal Stability and Reaction Probability towards CO Full article
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ChemPhysChem
ISSN: 1439-4235 , E-ISSN: 1439-7641 |
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| Output data | Year: 2015, Volume: 16, Number: 15, Pages: 3318-3324 Pages count : 8 DOI: 10.1002/cphc.201500546 | ||||
| Tags | CO oxidation, nanoparticles, platinum oxide, radio-frequency sputtering, X-ray photoelectron spectroscopy | ||||
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | V.44.1.16. |
Abstract:
Platinum-oxide nanoparticles were prepared through the radio-frequency (RF) discharge sputtering of a Pt electrode in an oxygen atmosphere. The structure, particles size, electronic properties, and surface composition of the RF-sputtered particles were studied by using transmission electron microscopy and X-ray photoelectron spectroscopy. The application of the RF discharge method resulted in the formation of highly oxidized Pt(4+) species that were stable under ultrahigh vacuum conditions up to 100 °C, indicating the capability of Pt(4+) -O species to play an important role in the oxidation catalysis under real conditions. The thermal stability and reaction probability of Pt(4+) oxide species were analyzed and compared with those of Pt(2+) species. The reaction probability of PtO2 nanoparticles at 90 °C was found to be about ten times higher than that of PtO-like structures.
Cite:
Svintsitskiy D.A.
, Kibis L.S.
, Stadnichenko A.I.
, Koscheev S.V.
, Zaikovskii V.I.
, Boronin A.I.
Highly Oxidized Platinum Nanoparticles Prepared through Radio-Frequency Sputtering: Thermal Stability and Reaction Probability towards CO
ChemPhysChem. 2015. V.16. N15. P.3318-3324. DOI: 10.1002/cphc.201500546 WOS Scopus РИНЦ ANCAN PMID OpenAlex
Highly Oxidized Platinum Nanoparticles Prepared through Radio-Frequency Sputtering: Thermal Stability and Reaction Probability towards CO
ChemPhysChem. 2015. V.16. N15. P.3318-3324. DOI: 10.1002/cphc.201500546 WOS Scopus РИНЦ ANCAN PMID OpenAlex
Dates:
| Submitted: | Jul 9, 2015 |
| Published online: | Aug 25, 2015 |
| Published print: | Oct 1, 2015 |
Identifiers:
| Web of science: | WOS:000363422600024 |
| Scopus: | 2-s2.0-84945207115 |
| Elibrary: | 24963860 |
| Chemical Abstracts: | 2015:1385968 |
| Chemical Abstracts (print): | 163:527890 |
| PMID: | 26489061 |
| OpenAlex: | W2103011078 |