Abstract
A comparison of X-ray photoemission spectra of LiFeO 2 , LiCoO 2 , and Li x Ni 2-x O 2 for the range of 0 < x ≤ 1 have been measured. A main O 1s XPS peak of LiNiO 2 and LiCoO 2 with a hexagonal type was observed at 531.9 eV, while that of LiInO 2 , LiFeO 2 with a tetragonal type and Li x Ni 2-x O 2 (x < 0.6) with a cubic type were about 531.4 eV. It was inferred from these results that the layered superstructure of LiNiO 2 and LiCoO 2 largely affected the formation of the active oxygen species for the high selective coupling reaction of methane.
Original language | English |
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Pages (from-to) | 492-495 |
Number of pages | 4 |
Journal | Applied Surface Science |
Volume | 121-122 |
DOIs | |
Publication status | Published - Nov 1997 |
Externally published | Yes |
Keywords
- C selectivity
- Coupling oxidation
- Layered structure
- Methane
- Rock-salt type
- XPS
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films