Abstract
IN the course of experiments on the heats of adsorption of hydrogen and carbon monoxide on oxide catalysts, it was observed that these gases behaved in a curious manner on desorption. Hydrogen or carbon monoxide adsorbed at room temperature on the ZnO – Cr2O3 catalysts at equilibrium pressures of 10−3–10−4 cm. was evolved on raising the temperature to 100°–120°, but within a period of 20–30 minutes, it was readsorbed on the surface giving a hard vacuum in the containing vessel. On further raising the temperature, no gas was evolved until 350° C., when water vapour or carbon dioxide respectively was liberated. Mixtures of hydrogen and carbon monoxide behaved similarly, being evolved and readsorbed at 100°–120° C. and finally at 350° C. being converted into a mixture of water and carbon dioxide, no appreciable quantities of organic compounds being formed.
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GARNER, W., KINGMAN, F. Adsorption of Hydrogen and Carbon Monoxide on Oxide Catalysts. Nature 126, 352 (1930). https://doi.org/10.1038/126352b0
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DOI: https://doi.org/10.1038/126352b0
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