University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Surface ligand assisted valence change in ceria nanocrystals

Zhang, J, Naka, T, Ohara, S, Kaneko, K, Trevethan, T, Shluger, A and Adschiri, T (2011) Surface ligand assisted valence change in ceria nanocrystals Physical Review B - Condensed Matter and Materials Physics, 84 (4).

Full text not available from this repository.

Abstract

In this report, we used x-ray absorption, electron energy-loss, and magnetic analyses to demonstrate the effect of modification of ceria (CeO 2-δ) nanocrystals with a particle size D= 3.5-14 nm by oleic acid surface ligands. We observe a shift of the electronic state of the cerium ions from tetra to trivalent state as the surface density of the ligand molecules is increased. The valence state of cerium in the nanocrystal is strongly correlated with the number of ligand molecules bound to the surface of the ceria nanocrystals. One oxygen vacancy is stabilized by 5-6 ligand molecules bound on a CeO2-δ nanocrystal. © 2011 American Physical Society.

Item Type: Article
Authors :
NameEmailORCID
Zhang, JUNSPECIFIEDUNSPECIFIED
Naka, TUNSPECIFIEDUNSPECIFIED
Ohara, SUNSPECIFIEDUNSPECIFIED
Kaneko, KUNSPECIFIEDUNSPECIFIED
Trevethan, Tt.trevethan@surrey.ac.ukUNSPECIFIED
Shluger, AUNSPECIFIEDUNSPECIFIED
Adschiri, TUNSPECIFIEDUNSPECIFIED
Date : 6 July 2011
Identification Number : 10.1103/PhysRevB.84.045411
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:35
Last Modified : 17 May 2017 15:04
URI: http://epubs.surrey.ac.uk/id/eprint/835941

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800