Ar+ assisted carbidization of TiO2 (1 1 0) supported Mo nanoparticles by decomposition of C2H4

Autor:	František Šutara, Vladimír Cháb, András Berkó, Martin Švec, A.M. Kiss
Rok vydání:	2007
Předmět:	Materials science Analytical chemistry Nanoparticle Condensed Matter Physics Decomposition Nanocrystalline material Surfaces Coatings and Films law.invention Ion Crystallinity X-ray photoelectron spectroscopy law Particle Scanning tunneling microscope Instrumentation
Zdroj:	Vacuum. 82:125-129
ISSN:	0042-207X
DOI:	10.1016/j.vacuum.2007.07.025
Popis:	Ar + assisted carbidization of Mo nanoparticles supported on TiO 2 (1 1 0) is studied by scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). In order to activate the diffusion of carbon into the bulk of Mo nanoparticles we applied Ar ions (1 keV) during the exposure of C 2 H 4 . XPS exhibited that the decomposition of C 2 H 4 at 850 K accompanied by ion bombardment results in an almost complete carbidization of nanocrystalline Mo while this treatment performed without ion bombardment results only in the carbidization of the particle surface. The modification of the crystallinity of the Mo-carbide particles was deduced from STM measurements.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9346273367e321fe0d2dc842e7d6588f https://doi.org/10.1016/j.vacuum.2007.07.025 Zobrazit plný text záznamu Full Text from ScienceDirect