English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse
  1. View item / 
  2. Item Summary

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

X-ray Absorption Spectroscopy of Small Chromium Oxide Particles (Cr2O3, CrO2) Supported on Titanium Dioxide

MPS-Authors
/persons/resource/persons22063

Schedel-Niedrig,  Thomas
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21909

Neisius,  Thomas
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons270365

Simmons,  C. T.
Fritz Haber Institute, Max Planck Society;

/persons/resource/persons188127

Köhler,  Klaus
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Technische Universität München;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Schedel-Niedrig, T., Neisius, T., Simmons, C. T., & Köhler, K. (1996). X-ray Absorption Spectroscopy of Small Chromium Oxide Particles (Cr2O3, CrO2) Supported on Titanium Dioxide. Langmuir, 12(26), 6377-6381. doi:10.1021/la960261f.


Cite as: https://hdl.handle.net/21.11116/0000-000A-12E6-E
Abstract
The oxygen 1s X-ray absorption near-edge structure spectra were obtained for chromium(III) oxide, Cr2O3, and chromium(IV) dioxide, CrO2, supported on titania, TiO2, as well as for the bulk crystalline materials and, for comparison, for a chromium(VI) compound K2Cr2O7. The spectra exhibit a sharp split White line (WL) at about 533.5 eV near threshold. This structure can be explained in terms of ligand-field and exchange splitting. A peak (shoulder) due to the O(1s) → O(2p)Cr(3d) (spin-up t2g) transition could only be observed in the spectra of CrO2. The shape of the WL depends strongly on the oxidation state of the chromium ions in the probed samples suggesting that the WL can be used as an indicator of different environments in the supported chromium oxide films.