Uranyl oxide hydrate phases with heavy lanthanide ions:[Ln(UO2)2O3(OH)]. 0.5 H2O (Ln= Tb, Dy, Ho and Yb)
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F18%3A10134113" target="_blank" >RIV/00023272:_____/18:10134113 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1039/c8nj01376d" target="_blank" >http://dx.doi.org/10.1039/c8nj01376d</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c8nj01376d" target="_blank" >10.1039/c8nj01376d</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Uranyl oxide hydrate phases with heavy lanthanide ions:[Ln(UO2)2O3(OH)]. 0.5 H2O (Ln= Tb, Dy, Ho and Yb)
Popis výsledku v původním jazyce
Four uranyl oxide hydrate phases with heavy lanthanide ions, [Ln(UO2)(2)O-3 (OH)].0.5H(2)O [Ln = Tb (1), Dy (2), Ho (3) and Yb (4)], have been synthesized under hydrothermal conditions at 240 degrees C and characterized. SEM-EDS revealed that these phases have very similar thin plate morphologies with a U to Ln atomic ratio of 2:1, which is further confirmed by TEM-EDS. Their high magnification TEM bright field images showed small crystalline domains (similar to 2-5 nm) with preferred crystaL orientations. Both XRD and TEM SAED confirmed that they crystallize in the trigonaL crystal system with the P (3) over bar m1 space group. Raman characterization revealed the typical vibration modes for the uranyl units with the calculated U=O bond lengths are comparable to the values reported for other UOH phases with d-transition metal ions as the interlayer species. The possible presence of a pentavalent uranyl unit has been ruled out by UV-vis-NIR spectroscopy. The thermal and optical properties have also been investigated and reported.
Název v anglickém jazyce
Uranyl oxide hydrate phases with heavy lanthanide ions:[Ln(UO2)2O3(OH)]. 0.5 H2O (Ln= Tb, Dy, Ho and Yb)
Popis výsledku anglicky
Four uranyl oxide hydrate phases with heavy lanthanide ions, [Ln(UO2)(2)O-3 (OH)].0.5H(2)O [Ln = Tb (1), Dy (2), Ho (3) and Yb (4)], have been synthesized under hydrothermal conditions at 240 degrees C and characterized. SEM-EDS revealed that these phases have very similar thin plate morphologies with a U to Ln atomic ratio of 2:1, which is further confirmed by TEM-EDS. Their high magnification TEM bright field images showed small crystalline domains (similar to 2-5 nm) with preferred crystaL orientations. Both XRD and TEM SAED confirmed that they crystallize in the trigonaL crystal system with the P (3) over bar m1 space group. Raman characterization revealed the typical vibration modes for the uranyl units with the calculated U=O bond lengths are comparable to the values reported for other UOH phases with d-transition metal ions as the interlayer species. The possible presence of a pentavalent uranyl unit has been ruled out by UV-vis-NIR spectroscopy. The thermal and optical properties have also been investigated and reported.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10504 - Mineralogy
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2018
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
New Journal of Chemistry
ISSN
1144-0546
e-ISSN
—
Svazek periodika
42
Číslo periodika v rámci svazku
15
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
8
Strana od-do
12386-12393
Kód UT WoS článku
000445825800010
EID výsledku v databázi Scopus
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