Journal
APPLIED SURFACE SCIENCE
Volume 598, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2022.153827
Keywords
XPS; MoO2; MoO3; Peak model; In situ
Categories
Funding
- UNCAGE-ME, an Energy Frontier Research Center by the U.S. Department of Energy, Office of Science, Basic Energy Sciences [DE-SC0012577]
- CNRS [1317144]
Ask authors/readers for more resources
The study presents results from X-ray Photoelectron Spectroscopy (XPS) analysis of molybdenum oxide samples, showing how Mo (VI) oxide evolves to Mo (IV) oxide upon heating. A new method of data processing using sample modification to inform XPS data interpretation is proposed. The study provides insights into the transformations of molybdenum oxide under heat, supporting the interpretation of tetravalent Mo powders as multivalent materials.
Results from X-ray Photoelectron Spectroscopy (XPS) of molybdenum oxide samples are presented to elucidate how Mo (VI) oxide evolves to Mo (IV) oxide upon heating of a MoO3 sample. XPS data analysis techniques based on manipulation of spectra treated as vectors are shown and allow insights into intermediate phases of Mo oxide which suggest how the original oxide changes under the influence of heat but also supports an interpretation of as-received tetravalent Mo powders as multivalent materials. In particular, several new spectral components were observed and assigned to the Magne ' li phase as well as MoO3 domains that have been modified by the presence of X-rays or temperature. These assignments comprise a new method of data processing where sample modification is used to inform XPS data interpretation and differ from previous work where the linear relationship of the binding energy of molybdenum oxides has been used.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available