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

Tigran Margossian; Sean P. Culver; Kim Larmier; Feng Zhu; Richard L. Brutchey; Christophe Copéret

doi:10.1039/C6CC07298D

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Composition-dependent surface chemistry of colloidal Ba_xSr_1−xTiO₃ perovskite nanocrystals†

Tigran Margossian,^a Sean P. Culver,^b Kim Larmier,

^a Feng Zhu,^c Richard L. Brutchey*^b and Christophe Copéret*^a

Author affiliations

* Corresponding authors

^a ETH Zürich, Department of Chemistry and Applied Biosciences, Vladimir Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
E-mail: ccoperet@ethz.ch

^b Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA
E-mail: brutchey@usc.edu

^c Department of Chemistry, Iowa State University, Ames IA, USA

Abstract

Ba_xSr_1−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.

This article is part of the themed collection: Frontiers in Nanocrystal Surface Chemistry

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Article information

DOI: https://doi.org/10.1039/C6CC07298D
Article type: Communication
Submitted: 19 sep 2016
Accepted: 31 okt 2016
First published: 01 nov 2016

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Chem. Commun., 2016,52, 13791-13794

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Composition-dependent surface chemistry of colloidal Ba_xSr_1−xTiO₃ perovskite nanocrystals

T. Margossian, S. P. Culver, K. Larmier, F. Zhu, R. L. Brutchey and C. Copéret, Chem. Commun., 2016, 52, 13791 DOI: 10.1039/C6CC07298D

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