Structure and Composition of Titanium Nanocluster Films Prepared by a Gas Aggregation Cluster Source

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10104735" target="_blank" >RIV/00216208:11320/11:10104735 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/11:00366866

Výsledek na webu

<a href="http://pubs.acs.org/doi/abs/10.1021/jp2059485" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/jp2059485</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jp2059485" target="_blank" >10.1021/jp2059485</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structure and Composition of Titanium Nanocluster Films Prepared by a Gas Aggregation Cluster Source

Popis výsledku v původním jazyce

Structure and composition of titanium nanocluster films were studied on samples prepared by a gas aggregation cluster source. Elemental composition of the nanoclusters was studied by X-ray photoelectron spectroscopy (XPS), their crystal structure was determined by X-ray diffraction, and their optical properties were characterized by UV-vis spectroscopy. Both as-prepared and annealed films were studied. Annealing of selected nanocluster films was done in air at 420 degrees C for 1 h followed by a naturalcool-down. Titanium nanocluster films were found to oxidize immediately when exposed to ambient atmosphere. The as-prepared nanoclusters were composed of both Ti and TiO2. The nanoclusters undergo further oxidation in time and their structure and properties change. The transformation from a metal to an oxide structure of the nanoclusters upon annealing ends up in a semistable anatase crystal form of TiO2 with traces of a thermodynamically stable rutile crystal form.

Název v anglickém jazyce

Structure and Composition of Titanium Nanocluster Films Prepared by a Gas Aggregation Cluster Source

Popis výsledku anglicky

Structure and composition of titanium nanocluster films were studied on samples prepared by a gas aggregation cluster source. Elemental composition of the nanoclusters was studied by X-ray photoelectron spectroscopy (XPS), their crystal structure was determined by X-ray diffraction, and their optical properties were characterized by UV-vis spectroscopy. Both as-prepared and annealed films were studied. Annealing of selected nanocluster films was done in air at 420 degrees C for 1 h followed by a naturalcool-down. Titanium nanocluster films were found to oxidize immediately when exposed to ambient atmosphere. The as-prepared nanoclusters were composed of both Ti and TiO2. The nanoclusters undergo further oxidation in time and their structure and properties change. The transformation from a metal to an oxide structure of the nanoclusters upon annealing ends up in a semistable anatase crystal form of TiO2 with traces of a thermodynamically stable rutile crystal form.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

—

Svazek periodika

115

Číslo periodika v rámci svazku

43

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

20937-20944

Kód UT WoS článku

000296172800017

EID výsledku v databázi Scopus

—