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XAS investigations of Eu-doped BaAl2O4. Part 1: XANES studies (CROSBI ID 644915)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Lützenkirchen‐Hecht, Dirk ; Gržeta, Biserka ; Vrankić, Martina ; Bosnar, Sanja ; Šarić, Ankica ; Petrov, Dimitar ; Wagner, Ralph XAS investigations of Eu-doped BaAl2O4. Part 1: XANES studies // 12th DELTA User Meeting & Annual Report 2016 / Sternemann, Christian ; Wagner, Ralph ; Lützenkirchen‐Hecht, Dirk (ur.). Dortmund: Dortmund Electron Accelerator DELTA, Dortmund, Njemačka, 2016. str. 91-92

Podaci o odgovornosti

Lützenkirchen‐Hecht, Dirk ; Gržeta, Biserka ; Vrankić, Martina ; Bosnar, Sanja ; Šarić, Ankica ; Petrov, Dimitar ; Wagner, Ralph

engleski

XAS investigations of Eu-doped BaAl2O4. Part 1: XANES studies

Powder sample of pure BaAl2O4 and one doped with 4.9 at% Eu in relation to barium were prepared by a hydrothermal method and subsequent annealing at 1100 oC for 4h. Both samples were characterized by synchrotron based X-ray absorption spectroscopy. The transmission mode Eu and Ba L3- edge X-ray absorption experiments of the prepared samples were performed at DELTA beamline 10. The normalized Eu L3-edge XANES spectrum of Eu-doped sample was investigated in comparison to the spectra of Eu2O3 and AlEuO3 standards, and to the one of a glass sample containing both Eu2+ and Eu3+. The white line feature of the Eu-doped BaAl2O4 sample at 6983.4 eV clearly revealed the presence of trivalent europium in the doped sample. The Ba L3-edge XANES spectra of pure BaAl2O4 and Eu-doped BaAl2O4 samples showed that in the doped sample the host material remained in its original Ba2+-state. The presence of impurity phases such as Eu2O3, AlEuO3 and BaO in the prepared Eu-doped sample can be excluded on a basis of the obtained XANES spectra.

Barium aluminate ; Europium doping ; X-ray absorption spectroscopy

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Podaci o prilogu

91-92.

2016.

objavljeno

Podaci o matičnoj publikaciji

12th DELTA User Meeting & Annual Report 2016

Sternemann, Christian ; Wagner, Ralph ; Lützenkirchen‐Hecht, Dirk

Dortmund: Dortmund Electron Accelerator DELTA, Dortmund, Njemačka

Podaci o skupu

12th DELTA User Meeting

predavanje

30.11.2016-30.11.2016

Dortmund, Njemačka

Povezanost rada

Fizika, Kemija