Absence of Ni on the outer surface of Sr doped La2NiO4 single crystals

作者:Burriel Monica*; Wilkins Stuart; Hill John P; Munoz Marquez Miguel A; Brongersma Hidde H; Kilner John A; Ryan Mary P; Skinner Stephen J
来源:Energy & Environmental Science, 2014, 7(1): 311-316.
DOI:10.1039/c3ee41622d

摘要

A combination of surface sensitive techniques was used to determine the surface structure and chemistry of La2-xSrxNiO4+delta. 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.

  • 出版日期2014-1