Issue Date: September 15, 2014
Revealing Surface Siloxane Structure With Silicon-29 NMR
Silica surfaces functionalized with siloxanes are potentially useful in many applications—including biomedicine, coatings, and fuel cells—but they are challenging to characterize. Solid-state, two-dimensional 29Si-29Si NMR can reveal the chemical architecture but only after months of data collection. Adding dynamic nuclear polarization to enhance NMR signals enables those experiments to be completed in hours, reports a team led by Gaël De Paëpe of the French Alternative Energies & Atomic Energy Commission (J. . . .
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