Photoluminescent porous aerogel monoliths containing ZnEu-complex: the first example of aerogel modified with a heteronuclear metal complex

Yorov, Kh. E.; Agafonov, A. V.; Lermontov, S. А.; Kiskin, M. A.; Ivanov, V. K.; Varaksina, E. A.; Pipich, V.; Kottsov, S. Yu.; Baranchikov, А. Е.; Len, A.; Sidorov, A. A.; Kopitsa, G. P.; Boytsova, O. V.

doi:10.1007/s10971-019-04958-9

Journal Article

FZJ-2019-02089

Photoluminescent porous aerogel monoliths containing ZnEu-complex: the first example of aerogel modified with a heteronuclear metal complex

Yorov, K. E. ; Kottsov, S. Y. ; Baranchikov, А. Е. ; Boytsova, O. V. ; Kiskin, M. A. ; Varaksina, E. A. ; Kopitsa, G. P. ; Lermontov, S. А. ; Sidorov, A. A. ; Pipich, V.FZJ* ; Len, A. ; Agafonov, A. V. ; Ivanov, V. K. (Corresponding author)

2019
Springer Science + Business Media B.V Dordrecht [u.a.]

Journal of sol gel science and technology 92, 304–318 (2019) [10.1007/s10971-019-04958-9]

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Please use a persistent id in citations: doi:10.1007/s10971-019-04958-9

Abstract: A procedure for the chemical immobilization of a new ZnII–EuIII heterobimetallic complex in the SiO2 aerogel matrix has been developed. In this Zn–Eu complex, a peripheral non-luminescent Zn ion acts as a binder to a silica matrix and prevents direct interaction of rare-earth ions with OH− and NH− groups in the silica matrix, which would have a detrimental effect on the luminescence of lanthanides. The procedure includes the synthesis of complexes, co-gelation of the obtained complex with SiO2 sol, the washing of lyogels, and their subsequent supercritical drying in CO2. The composition and properties of the obtained aerogels were investigated using a low-temperature nitrogen adsorption technique, helium pycnometry, FTIR, Raman, UV–visible, and luminescence spectroscopy, XPS, PXRD, SEM, TEM, TGA combined with mass spectrometry, and small-angle neutron scattering. The aerogels modified with the ZnII–EuIII complex demonstrated strong red luminescence upon excitation with UV light.

Keyword(s): Chemical Reactions and Advanced Materials (1st) ; Materials Science (2nd)

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