Structural Investigations of LiFePO4Electrodes by Fe X-ray Absorption Spectroscopy
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چکیده
منابع مشابه
Structural Investigations of LiFePO4 Electrodes by Fe X-ray Absorption Spectroscopy
Fe K-edge X-ray absorption near-edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS) have been performed on LiFePO4, and on electrodes containing this material to determine the local atomic and electronic structure and their stability with electrochemical cycling (repeated charging and discharging). Comparison of the XANES data for the powder sample, uncycled electrode...
متن کاملStructural investigations of LiFePO4 electrodes and in situ studies by Fe X-ray absorption spectroscopy
Fe K-edge X-ray absorption near edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS) have been performed o v b l K o ( i s r r ©
متن کاملLocal structural properties of (Mn,Fe)Nb2O6 from Mössbauer and X-ray absorption spectroscopy.
The MnNb(2)O(6)-FeNb(2)O(6) solid solution has been investigated by Fe-K- and Mn-K-edge X-ray absorption (XANES and EXAFS), and Mossbauer spectroscopy. The first-shell M-O bond lengths deduced from EXAFS show a fairly small compositional dependence. A degree of static disorder, which increases with increasing manganese content, is clearly seen by the loss of correlation for the next-neighbour (...
متن کاملX-ray Absorption Spectroscopy
X-ray absorptioń spectroscopy, today widely used as a tool for structural investigations, is described. Theoretically it is shown that above an absorption edge the absorption coefficient is well approximated by a sum of terms, each one describing a particular path followed by the photoelectron outgoing from the atom. Such geometrical feature allows to use X-ray absorption spectroscopy for struc...
متن کاملX-ray Absorption Spectroscopy
1.59.1 PHYSICS OF X-RAY ABSORPTION 1 1.59.1.1 X-ray Absorption Edges 2 1.59.1.2 X-ray Fluorescence 3 1.59.1.3 Measurement of X-ray Absorption Spectra 3 1.59.2 EXTENDED X-RAY ABSORPTION FINE STRUCTURE 6 1.59.2.1 Theoretical Description of EXAFS Spectra 6 1.59.2.1.1 Single scattering 6 1.59.2.1.2 Multiple scattering 8 1.59.2.1.3 Other corrections to the EXAFS equation 9 1.59.2.2 Programs for Calc...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry B
سال: 2004
ISSN: 1520-6106,1520-5207
DOI: 10.1021/jp036361t