Composition-dependent surface chemistry of colloidal BaxSr1-xTiO3perovskite nanocrystals.
BaxSr1-xTiO3perovskite 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 CO2as 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.
ETH Zürich, Department of Chemistry and Applied Biosciences, Vladimir Prelog-Weg 1-5, CH-8093 Zürich, Switzerland. ccoperet@ethz.ch.
Tigran
T
Margossian
Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA. brutchey@usc.edu.
Sean P
SP
Culver
ETH Zürich, Department of Chemistry and Applied Biosciences, Vladimir Prelog-Weg 1-5, CH-8093 Zürich, Switzerland. ccoperet@ethz.ch.
Kim
http://orcid.org/0000-0002-5199-1516
K
Larmier
Department of Chemistry, Iowa State University, Ames IA, 50011, USA.
Feng
F
Zhu
Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA. brutchey@usc.edu.
Richard L
RL
Brutchey
ETH Zürich, Department of Chemistry and Applied Biosciences, Vladimir Prelog-Weg 1-5, CH-8093 Zürich, Switzerland. ccoperet@ethz.ch.
Christophe
C
Copéret