Study of the reactivity of silica supported tantalum catalysts with oxygen followed by in situ HEROS

Błachucki, Wojciech; Szlachetko, Jakub; Kayser, Yves; Dousse, Jean-Claude; Hoszowska, Joanna; Fernandes, Daniel L. A.; Sá, Jacinto

doi:10.1039/C5CP02950C

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Journal article

Study of the reactivity of silica supported tantalum catalysts with oxygen followed by in situ HEROS

Błachucki, Wojciech Department of Physics, University of Fribourg, Fribourg, Switzerland
Szlachetko, Jakub Paul Scherrer Institute, Villigen PSI, Switzerland - Institute of Physics, Jan Kochanowski University, Kielce, Poland
Kayser, Yves Paul Scherrer Institute, Villigen PSI, Switzerland
Dousse, Jean-Claude Department of Physics, University of Fribourg, Fribourg, Switzerland
Hoszowska, Joanna Department of Physics, University of Fribourg, Fribourg, Switzerland
Fernandes, Daniel L. A. Department of Chemistry, Uppsala University, Sweden
Sá, Jacinto Department of Chemistry, Uppsala University, Sweden - Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland

08.07.2015

Published in:

Physical Chemistry Chemical Physics. - 2015, vol. 17, no. 28, p. 18262–18264

English We report on the reactivity of grafted tantalum organometallic catalysts with molecular oxygen. The changes in the local Ta electronic structure were followed by in situ high-energy resolution off-resonant spectroscopy (HEROS). The results revealed agglomeration and formation of Ta dimers, which cannot be reversed. The process occurs independently of starting grafted complex.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language