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Influence of crysta...
Influence of crystal structure, ligand environment and morphology on Co L-edge XAS spectral characteristics in cobalt compounds
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Bora, D. K. (författare)
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- Cheng, X. (författare)
- KTH,Teoretisk kemi och biologi,Lawrence Berkeley National Laboratory, United States; University of Science and Technology of China, China
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Kapilashrami, M. (författare)
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Glans, P. A. (författare)
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- Luo, Yi (författare)
- KTH,Teoretisk kemi och biologi,University of Science and Technology of China, China
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Guo, J. -H (författare)
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(creator_code:org_t)
- International Union of Crystallography (IUCr), 2015
- 2015
- Engelska.
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Ingår i: Journal of Synchrotron Radiation. - : International Union of Crystallography (IUCr). - 0909-0495 .- 1600-5775. ; 22, s. 1450-1458
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The electronic structure of a material plays an important role in its functionality for different applications which can be probed using synchrotron-based spectroscopy techniques. Here, various cobalt-based compounds, differing in crystal structure, ligands surrounding the central metal ion and morphology, have been studied by soft X-ray absorption spectroscopy (XAS) at the Co L-edge in order to measure the effect of these parameters on the electronic structure. A careful qualitative analysis of the spectral branching ratio and relative intensities of the L 3 and L 2 peaks provide useful insight into the electronic properties of compounds such as CoO/Co(OH)2, CoCl2.6H2O/CoF2.4H2O, CoCl2/CoF2, Co3O4 (bulk/nano/micro). For further detailed analysis of the XAS spectra, quantitative analysis has been performed by fitting the spectral profile with simulated spectra for a number of cobalt compounds using crystal field atomic multiplet calculations.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- branching ratio
- cobalt L-edge
- I(L3)/I(L2) ratio
- NEXAFS
- site symmetry
- Cobalt
- Cobalt compounds
- Electronic properties
- Electronic structure
- Ligands
- Metal ions
- Metals
- X ray absorption spectroscopy
- Qualitative analysis
- Relative intensity
- Simulated spectra
- Soft x-ray absorption spectroscopies
- Spectral characteristics
- Crystal structure
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- art (ämneskategori)
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