Speaker
Niels Lefeld
(University of Bremen, Institute of Inorganic Chemistry and Crystallography, Bremen, Germany)
Description
The conversion of Bi$_2$W$_2$O$_9$ to H$_2$W$_2$O$_7$ via HCl treatment has been investigated with in-situ Raman spectroscopy and total scattering / PDF analysis. Previous reports on the selective leaching mechanism of the bismuth oxide interlayer could be verified on the basis of the atomic structure. Our study additionally reveals different rates for the interlayer break-down and subsequent realignment processes resulting in a loss of structural coherence and thus long-range order.
Primary author
Niels Lefeld
(University of Bremen, Institute of Inorganic Chemistry and Crystallography, Bremen, Germany)
Co-authors
Andrea Kirsch
Soham Banerjee
(Deutsches Elektronen-Synchrotron DESY, P21.1, Hamburg, Germany)
Mathias Gogolin
(University of Bremen, Institute of Inorganic Chemistry and Crystallography, Bremen, Germany)
Thorsten M. GESING
(University of Bremen, Institute of Inorganic Chemistry and Crystallography, Bremen, Germany. University of Bremen, MAPEX Center for Materials and Processes, Bremen, Germany.)
