A synchrotron X-ray spectroscopy study of titanium co-ordination in explosive melt glass derived from the trinity nuclear test

The speciation of Ti in trinitite, the explosive melt glass derived from the Trinity Test of 16(th) of July 1945, was investigated by X-ray absorption spectroscopy (XAS). Ti K-edge XANES showed that Ti was present in the Ti(iv) oxidation state for all samples. Fitting of pre-edge features by Gaussia...

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Detalles Bibliográficos
Autores principales: Bailey, D. J., Stennett, M. C., Ravel, B., Crean, D. E., Hyatt, N. C.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2019
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9063809/
https://www.ncbi.nlm.nih.gov/pubmed/35520802
http://dx.doi.org/10.1039/c8ra10375e
Descripción
Sumario:The speciation of Ti in trinitite, the explosive melt glass derived from the Trinity Test of 16(th) of July 1945, was investigated by X-ray absorption spectroscopy (XAS). Ti K-edge XANES showed that Ti was present in the Ti(iv) oxidation state for all samples. Fitting of pre-edge features by Gaussian functions and comparison with standards of known Ti coordination revealed significant variation in Ti coordination environment between samples. The variation of Ti coordination may be attributed to several factors including specific local chemistry and thermal histories of samples, in keeping with the highly heterogeneous microstructure of trinitite and the arkosic sand source material.

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