Molecular level insight on the adsorption of carboxylic acids to oxide nanoparticles in aqueous solution by X-ray photoelectron spectroscopy

作者：Olivieri Giorgia; Goel Alok; Brown Matthew A

来源：Chemical Communications, 2016, 52(58): 9040-9043.

DOI：10.1039/c5cc10582j

We show, for the first time, the ability to follow the surface chemistry (acid-base equilibrium) of a colloid nanoparticle (AlxOy@SiO2) while simultaneously monitoring the adsorption of a solute molecule (HCOOH) from solution using in situ X-ray photoelectron spectroscopy. Based on the results of the Al 2p and C 1s spectra a mechanism is proposed.

• 出版日期2016