Document Details Document Type : Article In Journal  Document Title : Formation of Ruthenium Cluster on Nanocrystalline Tungsten Trioxide Formation of Ruthenium Cluster on Nanocrystalline Tungsten Trioxide   Document Language : English  Abstract : Ruthenium (Ru)-modified (up to 1 wt %) tungsten trioxide (WO3) samples were synthesized and characterized by X-ray diffraction, X-ray photoelectron spectroscopy (XPS), scanning and transmission electron microscopy, and Raman spectroscopy. Ru was found to form hexagonal clusters on {111} planes of the underlying WO3 crystals with similar arrangement as is found in metal Ru. XPS revealed that the valence state of ruthenium corresponds to the oxidized state. Results indicate that bonding between Ru and oxygen of the crystal surfaces is a key factor for the cluster formation. No evidence for a crystalline ruthenium oxide or metal phase formation was found instead Ru atoms were bonded on oxygen on the WO3 {111} plane  ISSN : 1932-7447  Journal Name : JOURNAL OF PHYSICAL CHEMISTRY C  Volume : 117  Issue Number : 15  Publishing Year : 1434 AH 2013 AD  Article Type : Article  Added Date : Wednesday, July 26, 2017  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email y Fujioka Fujioka, y Researcher     J Frantti Frantti, J Researcher     R Nieminen Nieminen, R Researcher     A Asiri Asiri, A Researcher     Files File Name Type Description  42274.pdf pdf   Back To Researches Page