Simultaneous in Situ X‑ray Absorption Spectroscopy and X‑ray Diffraction Studies on Battery Materials: The Case of Fe0.5TiOPO4
Following the reaction mechanisms of materials for Li-ion batteries under in situ conditions can provide vital new clues in the development of better battery materials. A new in situ cell was developed for such a purpose which allows an almost simultaneous measurement of XRD (X-ray diffraction) and...
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| Veröffentlicht in: | Journal of physical chemistry. C 2015-02 |
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| container_title | Journal of physical chemistry. C |
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| creator | Bleith, Peter van Beek, Wouter Kaiser, Hermann Novák, Petr Villevieille, Claire |
| description | Following the reaction mechanisms of materials for Li-ion batteries under in situ conditions can provide vital new clues in the development of better battery materials. A new in situ cell was developed for such a purpose which allows an almost simultaneous measurement of XRD (X-ray diffraction) and XAS (X-ray absorption spectroscopy) at energies as low as the Ti K-edge. Change from one method to the other was possible in less than a minute at the Swiss–Norwegian Beamline (SNBL). Using this cell with its flexibility in terms of windows, it was proven that the reaction mechanism of iron titanium oxyphosphate (Fe0.5TiOPO4) upon lithiation and delithiation consists of a combined insertion–conversion reaction with the mostly reversible reduction of Ti4+ to Ti2+ and Fe2+ to Fe0. |
| doi_str_mv | 10.1021/jp511042x |
| format | Article |
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A new in situ cell was developed for such a purpose which allows an almost simultaneous measurement of XRD (X-ray diffraction) and XAS (X-ray absorption spectroscopy) at energies as low as the Ti K-edge. Change from one method to the other was possible in less than a minute at the Swiss–Norwegian Beamline (SNBL). Using this cell with its flexibility in terms of windows, it was proven that the reaction mechanism of iron titanium oxyphosphate (Fe0.5TiOPO4) upon lithiation and delithiation consists of a combined insertion–conversion reaction with the mostly reversible reduction of Ti4+ to Ti2+ and Fe2+ to Fe0.</description><identifier>ISSN: 1932-7447</identifier><identifier>EISSN: 1932-7455</identifier><identifier>DOI: 10.1021/jp511042x</identifier><language>eng</language><publisher>American Chemical Society</publisher><ispartof>Journal of physical chemistry. 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A new in situ cell was developed for such a purpose which allows an almost simultaneous measurement of XRD (X-ray diffraction) and XAS (X-ray absorption spectroscopy) at energies as low as the Ti K-edge. Change from one method to the other was possible in less than a minute at the Swiss–Norwegian Beamline (SNBL). Using this cell with its flexibility in terms of windows, it was proven that the reaction mechanism of iron titanium oxyphosphate (Fe0.5TiOPO4) upon lithiation and delithiation consists of a combined insertion–conversion reaction with the mostly reversible reduction of Ti4+ to Ti2+ and Fe2+ to Fe0.</abstract><pub>American Chemical Society</pub><doi>10.1021/jp511042x</doi></addata></record> |
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| title | Simultaneous in Situ X‑ray Absorption Spectroscopy and X‑ray Diffraction Studies on Battery Materials: The Case of Fe0.5TiOPO4 |
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