Absence of Ni on the outer surface of Sr doped La 2 NiO 4 single crystals

Mónica Burriel, Stuart Wilkins, John P. Hill, Miguel A. Muñoz-Márquez, Hidde H. Brongersma, John A. Kilner, Mary P. Ryan, Stephen J. Skinner

Research output: Contribution to journalArticlepeer-review

62 Scopus citations

Abstract

A combination of surface sensitive techniques was used to determine the surface structure and chemistry of La2-xSrxNiO 4+δ. These measurements unequivocally showed that Ni is not present in the outermost atomic layer, suggesting that the accepted model with the B-site cations exposed to the environment is incorrect. © 2014 The Royal Society of Chemistry.
Original languageEnglish (US)
Pages (from-to)311-316
Number of pages6
JournalEnergy Environ. Sci.
Volume7
Issue number1
DOIs
StatePublished - 2014
Externally publishedYes

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