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ČÁSTKOVÁ, K. MATOUŠEK, A. BARTONÍČKOVÁ, E. CIHLÁŘ, J. VANÝSEK, P. CIHLÁŘ, J.
Originální název
Sintering of Ce, Sm, and Pr Oxide Nanorods
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Synthesis of CeO2, Pr2O3, and Sm2O3 nanorods and their sintering have been investigated. In a strongly alkaline medium, nanorods of CeO2, Pr2O3, and Sm2O3 were prepared from trivalent salts of rare earths (Ce, Pr, Sm) via precipitation synthesis. Nanorods were formed by nanocrystallites of fibrous structure, which were produced by the mechanism of selfarrangement of hexagonal particles of Re(III) hydroxides. The subsequent transformation of hydroxide into oxide proceeded via self-preservation of the rod-like structure. In CeO2, the fibrous structure was noncohesive during thermal treatment at temperature of 500°C and higher. Regardless of the shape of the CeO2 particles (spherical versus rod-like), sintered ceramic was formed by equiaxial grains. The cohesion of the fibrous structure of Pr and Sm oxides was higher than in CeO2. The rod-like shape of the particles of Pr and Sm oxides was (partially) preserved during sintering.
Klíčová slova
synthesis, sintering, ceria, samaria, praseodymia, nanorods
Autoři
ČÁSTKOVÁ, K.; MATOUŠEK, A.; BARTONÍČKOVÁ, E.; CIHLÁŘ, J.; VANÝSEK, P.; CIHLÁŘ, J.
Vydáno
1. 4. 2016
Nakladatel
The American Chemical Society
ISSN
0002-7820
Periodikum
Journal of the American Ceramic Society
Ročník
99
Číslo
4
Stát
Spojené státy americké
Strany od
1155
Strany do
1163
Strany počet
9
URL
http://onlinelibrary.wiley.com/doi/10.1111/jace.14087/full
BibTex
@article{BUT121402, author="Klára {Částková} and Aleš {Matoušek} and Eva {Bartoníčková} and Jaroslav {Cihlář} and Petr {Vanýsek} and Jaroslav {Cihlář}", title="Sintering of Ce, Sm, and Pr Oxide Nanorods", journal="Journal of the American Ceramic Society", year="2016", volume="99", number="4", pages="1155--1163", doi="10.1111/jace.14087", issn="0002-7820", url="http://onlinelibrary.wiley.com/doi/10.1111/jace.14087/full" }