Photoemission and RHEED study of the supported Pt and Au epitaxial alloy clusters

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10192065" target="_blank" >RIV/00216208:11320/13:10192065 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.apsusc.2013.06.047" target="_blank" >http://dx.doi.org/10.1016/j.apsusc.2013.06.047</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsusc.2013.06.047" target="_blank" >10.1016/j.apsusc.2013.06.047</a>

Result language
angličtina
Original language name
Photoemission and RHEED study of the supported Pt and Au epitaxial alloy clusters
Original language description
In this paper, we investigated formation and structure of gold, platinum and Pt-Au bimetallic clusters on tungsten oxide surface. Crystallographic structure and orientation were investigated by reflection high energy electron diffraction, chemical composition and cluster's electronic state by synchrotron radiation photoelectron spectroscopy. Small amount of Au and Pt was deposited on WO3 (1 1 1) surface prepared by RF plasma oxidation and thermal annealing of (1 1 0) tungsten single crystal surface. Formation of 3D Pt or Au clusters with (1 1 1) epitaxial plane was observed. On the contrary to Au, strong metal substrate interaction between Pt and oxide was found, leading to the encapsulation of Pt clusters. Formation of Au-Pt bimetallic clusters was investigated at the temperature range of 160-870 K. It was found that cluster structure depends on the substrate temperature and order of materials deposition. At the temperatures around 570 K, metals formed bimetallic clusters with core-sh
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)