Altering properties of cerium oxide thin films by Rh doping

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10319437" target="_blank" >RIV/00216208:11320/15:10319437 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.materresbull.2015.02.059" target="_blank" >http://dx.doi.org/10.1016/j.materresbull.2015.02.059</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.materresbull.2015.02.059" target="_blank" >10.1016/j.materresbull.2015.02.059</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Altering properties of cerium oxide thin films by Rh doping

Popis výsledku v původním jazyce

Ceria containing highly dispersed ions of rhodium is a promising material for catalytic applications. The Rh-CeOx thin films with different concentrations of rhodium were deposited by RF magnetron sputtering and were studied by soft and hard X-ray photoelectron spectroscopies, Temperature programmed reaction and X-ray powder diffraction techniques. The sputtered films consist of rhodium-cerium mixed oxide where cerium exhibits a mixed valency of Ce4+ and Ce3+ and rhodium occurs in two oxidation states,Rh3+ and Rhn+. We show that the concentration of rhodium has a great influence on the chemical composition, structure and reducibility of the Rh-CeOx thin films. The films with low concentrations of rhodium are polycrystalline, while the films with higher amount of Rh dopants are amorphous. The morphology of the films strongly influences the mobility of oxygen in the material. Therefore, varying the concentration of rhodium in Rh-CeOx thin films leads to preparing materials with differen

Název v anglickém jazyce

Altering properties of cerium oxide thin films by Rh doping

Popis výsledku anglicky

Ceria containing highly dispersed ions of rhodium is a promising material for catalytic applications. The Rh-CeOx thin films with different concentrations of rhodium were deposited by RF magnetron sputtering and were studied by soft and hard X-ray photoelectron spectroscopies, Temperature programmed reaction and X-ray powder diffraction techniques. The sputtered films consist of rhodium-cerium mixed oxide where cerium exhibits a mixed valency of Ce4+ and Ce3+ and rhodium occurs in two oxidation states,Rh3+ and Rhn+. We show that the concentration of rhodium has a great influence on the chemical composition, structure and reducibility of the Rh-CeOx thin films. The films with low concentrations of rhodium are polycrystalline, while the films with higher amount of Rh dopants are amorphous. The morphology of the films strongly influences the mobility of oxygen in the material. Therefore, varying the concentration of rhodium in Rh-CeOx thin films leads to preparing materials with differen

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

S - Specificky vyzkum na vysokych skolach<br>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

Materials Research Bulletin

ISSN

0025-5408

e-ISSN

—

Svazek periodika

67

Číslo periodika v rámci svazku

Jul

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

5-13

Kód UT WoS článku

000353852000002

EID výsledku v databázi Scopus

2-s2.0-84923862977