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. 2016 Sep:78:50-55.
doi: 10.1016/j.ssnmr.2016.07.001. Epub 2016 Jul 12.

Fully quantitative description of hybrid TiO2 nanoparticles by means of solid state (31)P NMR

Marco Tassi  1 , Gunter Reekmans  2 , Robert Carleer  3 , Peter Adriaensens  2
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Fully quantitative description of hybrid TiO2 nanoparticles by means of solid state (31)P NMR

Marco Tassi et al. Solid State Nucl Magn Reson. 2016 Sep.

Abstract

For the first time, an absolute quantification of hybrid materials obtained from the reaction of phenylphosphonic acid (PPA) with TiO2 nanoparticles under different reaction conditions is reported. Next to the amount of PPA involved in grafting to the TiO2 nanoparticles, also the PPA included in titaniumphenylphosphonate crystallites is described quantitatively. The quantitative analysis is based on solid state (31)P MAS NMR and is further applied to evaluate the stability of the resulting hybrid materials towards hydrolysis and organic solvent exposure.

Keywords: (31)P solid state MAS NMR; Hybrid materials; Phosphonic acid; Structural quantification; TiO(2) surface modification.

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