A. V. Kuznetsov, I. K. Vorontsova, and I. D. Mikheikin
Karpov Research Institute of Physical Chemistry, Russian State Scientific Center,
ul. Vorontsovo Pole 10, Moscow, 103064 Russia
Received October 13, 1995
Abstract—Adsorption of CO on Mn/MgO model catalysts for oxidative dimerization of methane was studied
at 150–350 K by IR diffuse reflectance spectroscopy. Manganese admixtures (
0.4%) caused the disappearance
of the 
and 
oxide centers. At low temperatures, CO interacted with surface cations. Pure and promoted
MgO samples showed different shifts of adsorbed CO stretching vibration bands.
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