Influence of Pt and Pd on the catalytic activity of tungsten and molybdenum oxides in the deep oxidation of methane |
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Authors: | V. V. Lesnyak V. K. Yatsimirskii I. N. Gut O. Yu. Bondyreva |
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Affiliation: | (1) Taras Shevchenko Kyiv National University, Vul. Volodymyrs’ka, 64, Kyiv, 01033, Ukraine |
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Abstract: | It has been shown that the phases HxMO3 and MO3−x (M = Mo, W), obtained by reduction of the oxides WO3 and MoO3 with hydrogen with supported Pt(Pd) (0.5 mass %), have higher catalytic activity in the deep oxidation of methane than the catalysts Pt/Al2O3 and Pd/Al2O3 with the same amount of supported metal. At temperatures above 700 K the activity of these catalysts decreases in consequence of the thermal decomposition of the phases HxMO3 and MO3−x and they become similar in activity with Pt(Pd)/Al2O3. __________ Translated from Teoreticheskaya i éksperimental’naya Khimiya, Vol. 44, No. 2, pp. 126–129, March–April, 2008. |
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Keywords: | deep oxidation of methane tungsten and molybdenum oxides platinum palladium |
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