Understanding complex metal hydrides via synchrotron X-ray absorption spectroscopy

Tabbetha Dobbins, Corisma Robinson, Shathabish NaraseGowda

Research output: Contribution to journalArticlepeer-review

Abstract

Synchrotron light sources provide high flux X-rays for performing local electronic and atomic structure studies around the constituent atoms. In this study, the local structure around TiCl3 catalysts in the complex metal hydride NaAlH4 reveal the gradual transformation from 3+ to 0 oxidation state and corresponding local crystal structures similar to TiAl and TiAl3. Nano-confinement of NaAlH4 into the metalorganic framework, Fe-BTC, reveals that the local atomic structure around open metal site, Fe3+, on the host structure retains its oxidation state but that the local atomic structure is changed by the insertion of the NaAlH4. A structure similar to iron acetate is found in the bare Fe-BTC and the NaAlH4 infiltrated Fe-BTC material.

Original languageEnglish (US)
Article number0010
Pages (from-to)60-66
Number of pages7
JournalAfrican Review of Physics
Volume13
StatePublished - Jan 1 2018

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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