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NIST X-ray Photoelectron Spectroscopy Database (SRD 20), Version 5.0

Details Summary:
Summary Page
Tab Page Summary

General:
Element:
Mo
Formula:
Mo4O11
XPS Formula:
Mo(V) contribution to octahedral molybdenum sites adjoining tetrahedral sites
Name:
gamma-tetramolybdenum undecaoxide
CAS Registry No:
Class:
catalyst, oxide

Citation:
Author Name(s):
Shimoda M., Hirata T., Yagisawa K., Okochi M., Yoshikawa A.
Journal:
J. Mater. Sci. Lett. 8, 1089
DOI:
Pub Year:
1989

Data Processing:
Data Type:
Photoelectron Line
Line Designation:
3d5/2
Binding Energy (eV)
231.93
Energy Uncertainty:
Background Subtraction Method:
other
Peak Location Method:
other type of curve fit
Full Width at Half-maximum Intensity (eV):
Gaussian Width (eV):
Lorentzian Width (eV):

Measurement:
Use of X-ray Monochromator:
Yes
Anode Material:
Mg
X-ray Energy:
Overall Energy Resolution (eV):
0.75
Calibration:
Charge Reference:
Adventitious carbon
Energy Scale Evaluation:
Reliable (reported energy within 300 eV of a reference energy)
Comment:
This molybdenum oxide has four crystallographically inequivalent molybdenum sites, one tetrahedral site (Mo-1) and three octahedral sites (Mo-2, Mo-3 and Mo-4) with seriously distorted oxygen configurations. This is Mo-3 pentavalent state.

Specimen:
Specimen:
Method of Determining Specimen Composition:
Method of Determining Specimen Crystallinity:
X-ray Diffraction
Specimen Temperature (K):
300
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