Surface electronic structures of lithium nickel oxide solid solutions: selective methane oxidation

Surface electronic structures of lithium nickel oxide solid solutions: selective methane oxidation Ultraviolet photoelectron spectra (UPS) of lithium nickel oxide (Li x Ni2−x O2, 0 < x ≤ 1.0) solid solution were measured using a synchrotron radiation light source. The upper valence UPS are confirmed to consist of five structures for E b < 15 eV. The electronic density of two O2p states changed as the compositional ratio of Li and Ni. After a contact reaction of LiNiO2 and methane gas, the peak intensity of one of two O2p states decreased remarkably. It was found that the surface oxygen at the lower binding energy was selectively contributed to dissociate σ-bond between carbon and hydrogen of methane. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Surface electronic structures of lithium nickel oxide solid solutions: selective methane oxidation

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Publisher
Springer Netherlands
Copyright
Copyright © 2014 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-014-1820-5
Publisher site
See Article on Publisher Site

Abstract

Ultraviolet photoelectron spectra (UPS) of lithium nickel oxide (Li x Ni2−x O2, 0 < x ≤ 1.0) solid solution were measured using a synchrotron radiation light source. The upper valence UPS are confirmed to consist of five structures for E b < 15 eV. The electronic density of two O2p states changed as the compositional ratio of Li and Ni. After a contact reaction of LiNiO2 and methane gas, the peak intensity of one of two O2p states decreased remarkably. It was found that the surface oxygen at the lower binding energy was selectively contributed to dissociate σ-bond between carbon and hydrogen of methane.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Oct 17, 2014

References

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