Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/61391
Type: Artigo de Periódico
Title: Synthesis of SmLuO3 and EuLuO3 interlanthanides from hydrothermally-derived nanostructured precursors
Authors: Júlia Cristina Soares
Kisla Prislen Félix Siqueira
Roberto Luiz Moreira
Anderson Dias
Abstract: Phase-pure cubic SmLuO3 and EuLuO3 interlanthanides were synthesized for the first time from nanostructured hydrothermally-derived precursors. LuO(OH), Sm(OH)3 and Eu(OH)3 materials were firstly obtained by hydrothermal synthesis at 250 °C for 24 h. X-ray diffraction, micro-Raman spectroscopy, scanning and transmission electron microscopies were employed to investigate the thermal behavior of the mixed systems Sm(OH)3–LuO(OH) and Eu(OH)3–LuO(OH), up to 1600 °C. It was observed that the precursors were converted to lanthanide oxides in the temperature range 800–1200 °C, followed by chemical reactions that allowed the production of a mixture of monoclinic and cubic SmLuO3 or EuLuO3 materials at 1400 °C. Phase-pure cubic (space group, #206) interlanthanides were produced at 1600 °C, as corroborated by micro-Raman scattering probing the phonon modes, which were determined and assigned. The results showed that both systems could be promising materials for optical applications.
Subject: Compostos de lantanio
Compostos de metais de terras raras
Alteração hidrotermal
Raman, Espectroscopia de
Hidróxidos
Raios X - Difração
Microscopia eletrônica
Interação eletron-fonon
language: eng
metadata.dc.publisher.country: Brasil
Publisher: Universidade Federal de Minas Gerais
Publisher Initials: UFMG
metadata.dc.publisher.department: ICX - DEPARTAMENTO DE FÍSICA
ICX - DEPARTAMENTO DE QUÍMICA
Rights: Acesso Aberto
metadata.dc.identifier.doi: https://doi.org/10.1016/j.arabjc.2016.03.010
URI: http://hdl.handle.net/1843/61391
Issue Date: 2019
metadata.dc.url.externa: https://www.sciencedirect.com/science/article/pii/S1878535216300247
metadata.dc.relation.ispartof: Arabian Journal of Chemistry
Appears in Collections:Artigo de Periódico



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