Abstract
X-ray pair distribution function (PDF) analysis of Al0.57Sn0.43O1.71, a promising candidate as anode material for Li ion batteries, has been carried out using synchrotron radiation at 60 keV. The average and short-range ordering of nanocrystalline Al0.57Sn0.43O1.71was investigated both with the traditional Rietveld refinement method and with X-ray PDF analysis. The instrumental parameters of the high-resolution powder diffraction beamline P02.1, Petra III, have been characterized. Reverse Monte Carlo (RMC) refinements based on PDF data indicate that Al substitution induces local distortions around the Al/Sn atoms and that oxygen vacancies, induced by the Al substitution, are mostly located on an anion site around the Al atoms. Additionally, RMC refinements hint at a clustering of Al atoms.
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