Composition-dependent surface chemistry of colloidal BaxSr1-xTiO3 perovskite nanocrystals.

Tigran MargossianSean P CulverKim LarmierFeng ZhuRichard L BrutcheyChristophe Copéret

Published in: Chemical communications (Cambridge, England) (2018)

BaxSr1-xTiO3 perovskite nanocrystals, prepared by the vapor diffusion sol-gel method and characterized by state of the art surface techniques, display significantly different O-H stretching frequencies and adsorption properties towards CO2 as a function of the alkaline earth composition (Ba vs. Sr). The difference of properties can be associated with the more basic nature of BaO-rich than SrO-rich surfaces.

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