We have investigated several building stone materials, including minerals and rocks, using continuous flow hyperpolarized xenon (CF-HP) NMR spectroscopy to probe the surface composition and porosity. Chemical shift and line width values are consistent with petrographic information. Rare upfield shifts were measured and attributed to the presence of transition metal cations on the surface. The evolution of freshly cleaved rocks exposed to the atmosphere was also characterized. The CF-HP 129Xe NMR technique is non-destructive and it could complement currently used techniques, like porosimetry and microscopy, providing additional information on the chemical nature of the rock surface and its evolution. ©2012 by the authors.

Mauri, M., Simonutti, R. (2012). Hyperpolarized Xenon Nuclear Magnetic Resonance (NMR) of Building Stone Materials. MATERIALS, 5(12), 1722-1739 [10.3390/ma5091722].

Hyperpolarized Xenon Nuclear Magnetic Resonance (NMR) of Building Stone Materials

MAURI, MICHELE;SIMONUTTI, ROBERTO
2012

Abstract

We have investigated several building stone materials, including minerals and rocks, using continuous flow hyperpolarized xenon (CF-HP) NMR spectroscopy to probe the surface composition and porosity. Chemical shift and line width values are consistent with petrographic information. Rare upfield shifts were measured and attributed to the presence of transition metal cations on the surface. The evolution of freshly cleaved rocks exposed to the atmosphere was also characterized. The CF-HP 129Xe NMR technique is non-destructive and it could complement currently used techniques, like porosimetry and microscopy, providing additional information on the chemical nature of the rock surface and its evolution. ©2012 by the authors.
Articolo in rivista - Articolo scientifico
129Xe NMR; hyperpolarization; continuous flow; adsorption; diffusion; petrography; rocks; weathering; porosity
English
2012
5
12
1722
1739
none
Mauri, M., Simonutti, R. (2012). Hyperpolarized Xenon Nuclear Magnetic Resonance (NMR) of Building Stone Materials. MATERIALS, 5(12), 1722-1739 [10.3390/ma5091722].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/40024
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