Abstract
The effect of additive in V 2O 5 on the amount of excess electrons was studied for both low and high concentrations of Al 3+ and W 6+ ions. It was found that the addition of W 6+ at a low concentration increased the electrical conductance of the solid whereas Al 3+ decreased it. The relation between the excess electron concentration and the oxidative properties of the catalysts was explored in a flow reactor using the oxidative dehydrogenation of 1-butene. It is concluded that the formation of oxygen ion vacancies is the decisive step in the catalytic oxidation process.
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