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Berlin 2024 – wissenschaftliches Programm

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 9: KFM Poster Session

KFM 9.18: Poster

Montag, 18. März 2024, 18:00–20:00, Poster E

Defects, Fine and Hyperfine Interactions of the Historical Prussian Blue Compound Giese-Salt: Ammonium-Ferric-Hexacyano-Ferrate — •Sascha Albert Bräuninger1, Damian Alexander Motz1, Felix Seewald2, Sebastian Praetz3, Carla Vogt4, Birgit Kannengiesser3, Hans-Henning Klauss2, and Hermann Seifert11Institute for General Radiology and Medical Physics, University of Veterinary Medicine Hannover Foundation, Bischofsholer Damm 15, Hanover, 30173, Lower Saxony, Germany — 2Institute of Solid State and Materials Physics, TU Dresden,Haeckelstraße 3, Dresden, 01069, Saxony, Germany — 3Institute of Optics and Atomic Physics, TU Berlin, Hardenbergstraße 36, Berlin, 10623, Berlin, Germany — 4Institute of Analytical Chemistry, TU Bergakademie Freiberg, Leipziger Straße 29, Freiberg, 09599, Saxony, Germany

Prussian Blue compounds (PBC) have shown a huge potantial of applications in physics, chemistry, medicine and radioecology, e.g., selected PBC are acting as efficient ion exchanger extracting the radioistope 137Cs in solutions. In this study, the focus is the PBC ammonium iron(III) hexacyanoferrate(II) (NH4{Fe(III)[Fe(II)(CN)6]}), also known as Giese-salt, which is the ammonium derivative of the classic ("soluble") Prussian Blue as applied in veterinary medicine. Here, we investigate the Giese salt by a variety of techniques (XRD, ATR-IR, REM,...) highlighting the results of our Raman, XAFS and 57Fe-Mössbauer study confirming a local distribution of hyperfine parameters as expected for a disordered system.

Keywords: Prussian Blue; Mössbauer; XAFS; Giese salt; Ammonium-Ferric-Hexacyano-Ferrate

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