ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 18, Number 2
JKCSEZ 18(2)
April 20, 1974 

The catalytic reaction between carbon monoxide and oxygen was investigated in the presence of catalysts which were specially treated by applying an annealing method at different monoxide and oxygen and at reaction temperatures in the region of partial pressures of carbon 40℃ to 95℃. The oxidation rate is highest on NiO annealed at low temperature in vacuum. The data has been correlated with the first order kinetics, and the activation energies from the Arrhenius equation are found to be 4Kcal/mole in the region of the experimental temperatures. The excess oxygen in NiO obtained from the decomposition of NiCO3 does not cause activation at 95℃. But NiO catalysts annealed again in vacuum display activation even at 40℃. The quantity of the excess oxygen in NiO surfaces seems to be the controlling factor in determining the rates of oxidation of carbon monoxide.