In situ redox studies of schafarzikite related phases.
We are exploring the potential of the schafarzikite mineral structure (eg FeSb2O4) to support functionalization to provide useful properties. This programme has revealed for the first time that the channels in the structure can act as hosts for interstitial oxygen, with associated oxidation of transition metal ions present. Oxidation occurs at low temperatures such that possible applications as energy materials may be possible. It is ckear from mass changes that the oxygen does not simply enter as oxide, O2-, ions but also as catenated species such as peroxide. The proposed experiment aims to explore, in situ, the structural changes that occur when oxygen is inserted and removed from scahfarzikite phases. Some materials show a two-step insertion reaction and we will examine the thermodynamics associated with this by conducting this real time study.
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GREAVES Colin; DE LAUNE Benjamin; Thomas C. Hansen and HORSWELL Sarah. (2014). In situ redox studies of schafarzikite related phases.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-25-229
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