Structural and electrical properties of ceria nanoparticles on aluminosilicate matrices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F18%3A10241214" target="_blank" >RIV/61989100:27240/18:10241214 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27740/18:10241214 RIV/61989100:27640/18:10241214

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2214785318309635?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214785318309635?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matpr.2018.05.062" target="_blank" >10.1016/j.matpr.2018.05.062</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural and electrical properties of ceria nanoparticles on aluminosilicate matrices

Popis výsledku v původním jazyce

This paper presents a comparative study of structural and electrical properties of the aluminosilicate 2:1 layers of vermiculite (phyllosilicate) and the aluminosilicate cyclosilicate framework of cordierite anchoring ceria (CeO2) nanoparticles. The solution process and the findings are based on the structural characteristics already published in earlier works complemented by the measurement of the electrical properties. The electrical conductivity and relative permittivity were measured in the three frequencies of 104, 105 and 106 Hz in a homemade measuring plastic chamber with the conductive Cu plates. The aluminosilicate matrices of phyllosilicates showed higher electrical conductivity in comparison with the conductivity of cordierites. The increase in electrical conductivity CeO2 and corresponding decrease in relative permittivity in the frequencies range from 104 to 106 Hz were attributed to the augmentation of grain interior conductivity due to the trace amounts of nitrates captured after precipitation from their solutions. Ceria sintered in cordierite at 1300oC showed high crystallinity and the crystal structure defects which contributed to the photocatalytic decomposition N2O under UV radiation while preserving the electrical conductivity and relative permittivity of cordierite.

Název v anglickém jazyce

Structural and electrical properties of ceria nanoparticles on aluminosilicate matrices

Popis výsledku anglicky

This paper presents a comparative study of structural and electrical properties of the aluminosilicate 2:1 layers of vermiculite (phyllosilicate) and the aluminosilicate cyclosilicate framework of cordierite anchoring ceria (CeO2) nanoparticles. The solution process and the findings are based on the structural characteristics already published in earlier works complemented by the measurement of the electrical properties. The electrical conductivity and relative permittivity were measured in the three frequencies of 104, 105 and 106 Hz in a homemade measuring plastic chamber with the conductive Cu plates. The aluminosilicate matrices of phyllosilicates showed higher electrical conductivity in comparison with the conductivity of cordierites. The increase in electrical conductivity CeO2 and corresponding decrease in relative permittivity in the frequencies range from 104 to 106 Hz were attributed to the augmentation of grain interior conductivity due to the trace amounts of nitrates captured after precipitation from their solutions. Ceria sintered in cordierite at 1300oC showed high crystallinity and the crystal structure defects which contributed to the photocatalytic decomposition N2O under UV radiation while preserving the electrical conductivity and relative permittivity of cordierite.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/LQ1602" target="_blank" >LQ1602: IT4Innovations excellence in science</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Materials Today: Proceedings. Volume 5, Supplement 1

ISBN

—

ISSN

2214-7853

e-ISSN

2214-7853

Počet stran výsledku

7

Strana od-do

96-102

Název nakladatele

Elsevier

Místo vydání

Amsterdam

Místo konání akce

Ostrava

Datum konání akce

22. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—