Electron yield soft X-ray photoabsorption spectroscopy under normal ambient-pressure conditions
Ambient-pressure soft X-ray photoabsorption spectroscopy (XAS) was demonstrated to be applicable to the chemical analysis of hydrated transition-metal compounds. For this purpose, even under ambient-pressure conditions, electron yield detection XAS (EY-XAS), based on a simple drain-current set-up, w...
| Veröffentlicht in: | Journal of synchrotron radiation. - 1994. - 20(2013), Pt 3 vom: 10. Mai, Seite 419-25 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2013
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| Zugriff auf das übergeordnete Werk: | Journal of synchrotron radiation |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't conversion electron yield detection electron yield detection hydration normal ambient pressure soft X-ray photoabsorption spectroscopy Cobalt 3G0H8C9362 cobaltous chloride |
| Zusammenfassung: | Ambient-pressure soft X-ray photoabsorption spectroscopy (XAS) was demonstrated to be applicable to the chemical analysis of hydrated transition-metal compounds. For this purpose, even under ambient-pressure conditions, electron yield detection XAS (EY-XAS), based on a simple drain-current set-up, was used to overcome a weakness in fluorescence yield detection XAS (FY-XAS), which does not give a pure soft XAS. The feasibility of EY-XAS was investigated and it was clarified that the EY-XAS under ambient-pressure conditions corresponds to the mixed data of the total EY and conversion EY spectra. Normal ambient-pressure EY-XAS analysis was applied to anhydrous (CoCl2) and to hydrated (CoCl2·6H2O) cobalt chloride at the Co L23-edge. The present measurements demonstrated the ability to unambiguously distinguish the different chemical states of cobalt ions, relying upon spectral differences that indicate octahedral/quasi-octahedral structural changes as a result of hydration/dehydration reactions |
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| Beschreibung: | Date Completed 23.10.2013 Date Revised 21.03.2024 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1600-5775 |
| DOI: | 10.1107/S0909049513003592 |