Electron Spin Resonance Studies of the Surface Chemistry of Rutile

1966 ◽  
Vol 88 (22) ◽  
pp. 5055-5060 ◽  
Author(s):  
R. Doreswamy Iyengar ◽  
Maurice Codell ◽  
James S. Karra ◽  
John Turkevich
Keyword(s):  
Electron Spin Resonance ◽  
Surface Chemistry ◽  
Electron Spin ◽  
Spin Resonance

Electron spin resonance studies of the surface chemistry of molybdenum–alumina catalysts

1978 ◽  
Vol 56 (13) ◽  
pp. 1769-1772 ◽  
Author(s):  
K. C. Khulbe ◽  
R. S. Mann ◽  
M. Ternan
Keyword(s):  
Electron Spin Resonance ◽  
Surface Chemistry ◽  
Molybdenum Oxide ◽  
Electron Spin ◽  
Oxygen Species ◽  
Heavy Oils ◽  
Strong Signal ◽  
Spin Resonance ◽  
Alumina Catalysts

When alumina was doped with molybdenum oxide, the concentration of the electron accepting sites increased linearly up to 18 wt% MoO3, and then decreased. The colour of the Mo–alumina changed from whitish yellow to grayish black when degassed at 320 °C for 2 h. This depended on the concentration of Mo. A strong signal for Mo5+ was observed. Oxygen species were formed when the degassed sample was treated with oxygen or air. A reversible behaviour of oxygen on these species was observed. A possible mechanism has been discussed for the formation of O2− species and the reversible behaviour of oxygen. The concentration of electron accepting centers has been correlated with the activity for the hydrodenitrogenation of heavy oils over MoO3–alumina catalysts.

Electron spin resonance of palladium-related defect in silicon

2009 ◽  
Vol 404 (23-24) ◽  
pp. 4586-4589
Author(s):  
T. Ishiyama ◽  
S. Kimura ◽  
Y. Kamiura ◽  
Y. Yamashita
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Spin Resonance ◽  
Related Defect
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