Surface science approach to the solid-liquid interface: surface-dependent precipitation of Ni(OH)2 on α-Al2O3 surfaces

Asma Tougerti; Isabelle Llorens; Francesco D'Acapito; Emiliano Fonda; Jean-Louis Hazemann; Yves Joly; Dominique Thiaudière; Michel Che; Xavier Carrier

doi:10.1002/anie.201201349

Surface science approach to the solid-liquid interface: surface-dependent precipitation of Ni(OH)2 on α-Al2O3 surfaces

Angew Chem Int Ed Engl. 2012 Jul 27;51(31):7697-701. doi: 10.1002/anie.201201349. Epub 2012 Jun 22.

Authors

Asma Tougerti¹, Isabelle Llorens, Francesco D'Acapito, Emiliano Fonda, Jean-Louis Hazemann, Yves Joly, Dominique Thiaudière, Michel Che, Xavier Carrier

Affiliation

¹ UPMC-Université Pierre et Marie Curie, Laboratoire de Réactivité de Surface, 75252 Paris Cedex 05, France.

PMID: 22730255
DOI: 10.1002/anie.201201349

Abstract

Surface-dependent precipitation: The adsorption of Ni(II) complexes in aqueous solution on (0001) and (1102) α-Al(2)O(3) single-crystal surfaces has been studied (see the X-ray absorption spectra obtained for parallel and perpendicular polarization directions). The use of planar model systems emphasizes the crucial role of the Al(2)O(3) orientation for Ni dispersion with practical implications in catalyst preparation procedures.