Growth and composition of nanostructured and nanoporous cerium oxide thin films on a graphite foil

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10319388" target="_blank" >RIV/00216208:11320/15:10319388 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/c4nr06550f" target="_blank" >http://dx.doi.org/10.1039/c4nr06550f</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c4nr06550f" target="_blank" >10.1039/c4nr06550f</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Growth and composition of nanostructured and nanoporous cerium oxide thin films on a graphite foil

Popis výsledku v původním jazyce

The morphology and composition of CeOx films prepared by r.f. magnetron sputtering on a graphite foil have been investigated mainly by using microscopy methods. This study presents the formation of nanocrystalline layers with porous structure due to themodification of a carbon support and the formation of cerium carbide crystallites as a result of the deposition process. Chemical analyses of the layers with different thicknesses performed by energy dispersive X-ray spectroscopy, electron energy loss spectroscopy and X-ray photoelectron spectroscopy have pointed to the reduction of the cerium oxide layers. In the deposited layers, cerium was present in mixed Ce3+ and Ce4+ valence. Ce3+ species were located mainly at the graphite foil-CeOx interface andthe chemical state of cerium was gradually changing to Ce4+ going to the layer surface. It became more stoichiometric in the case of thicker layers except for the surface region, where the presence of Ce3+ was associated with oxygen vaca

Název v anglickém jazyce

Growth and composition of nanostructured and nanoporous cerium oxide thin films on a graphite foil

Popis výsledku anglicky

The morphology and composition of CeOx films prepared by r.f. magnetron sputtering on a graphite foil have been investigated mainly by using microscopy methods. This study presents the formation of nanocrystalline layers with porous structure due to themodification of a carbon support and the formation of cerium carbide crystallites as a result of the deposition process. Chemical analyses of the layers with different thicknesses performed by energy dispersive X-ray spectroscopy, electron energy loss spectroscopy and X-ray photoelectron spectroscopy have pointed to the reduction of the cerium oxide layers. In the deposited layers, cerium was present in mixed Ce3+ and Ce4+ valence. Ce3+ species were located mainly at the graphite foil-CeOx interface andthe chemical state of cerium was gradually changing to Ce4+ going to the layer surface. It became more stoichiometric in the case of thicker layers except for the surface region, where the presence of Ce3+ was associated with oxygen vaca

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-10396S" target="_blank" >GA13-10396S: Nové materiály pro planární palivové články</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Nanoscale [online]

ISSN

2040-3364

e-ISSN

—

Svazek periodika

7

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

4038-4047

Kód UT WoS článku

000350143700027

EID výsledku v databázi Scopus

2-s2.0-84923321177