Detail publikace

Hydrothermal Synthesis of Ceria Doped by Rare Earth Elements

ČÁSTKOVÁ, K. HADRABA, H. CIHLÁŘ, J.

Originální název

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The hydrothermal synthesis of cerium oxide doped by Gd3+, Sm3+ and Y3+ ions was studied. The ractions were held at temperatures of 200-250C and pressures of 150-200 bars in the presence of these bases: hydrazine, monoethanolamine, triethanolamine or ammonium hydroxide. The reaction product - cerium oxide doped by yttrium, samarium or gadolinium had the cubic crystal lattice. The size of crystallites was in the range of 5-200 nm. The crystallites formed particles with the mean size of 10-200 nm. Cerium oxide powders were shaped by uniaxial pressing and sintered at a temperature of 1500 C. Density of the sintered ceramics was in the range of 83-95 % of theoretical value and the size of the grains was in the range of 1-5 ěm. The attained results have showed that the hydrothermal synthesis is aplicable for preparations of nanocrystalline cerium oxide doped with rare elements without necessity of the high temperature calcination.

Klíčová slova v angličtině

hydrothermal synthesis, ceria, electrical properties

Autoři

ČÁSTKOVÁ, K.; HADRABA, H.; CIHLÁŘ, J.

Vydáno

1. 1. 2003

Nakladatel

Jožef Stefan Institute

Místo

Beograd

Strany od

Strany do

Strany počet

BibTex

@inproceedings{BUT13523,
  author="Klára {Částková} and Hynek {Hadraba} and Jaroslav {Cihlář}",
  title="Hydrothermal Synthesis of Ceria Doped by Rare Earth Elements",
  booktitle="Abstract Book",
  year="2003",
  pages="1",
  publisher="Jožef Stefan Institute",
  address="Beograd"
}