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Abstract
The chemisorption of carbonaceous species on platinized platinum from formaldehyde solutions has been studied. It is concluded from these studies that chemisorption of formaldehyde from acid sulfate solutions results in a species CO. In acid chloride solutions, however, the species consists of HCO (∼75%) and CO (∼25%). No effect of chloride ions on the mode of adsorption of methanol is observed. Possible causes for the effect of chloride ions on the mechanism of chemisorption of formaldehyde and methanol are discussed. Definite evidence has been found to show that the open-circuit adsorption of formaldehyde from moderately concentrated solution is accompanied by hydrogenation of the organic molecule. Kinetic parameters for the anodic oxidation of chemisorbed formaldehyde have been determined and are shown to be analogous to those for chemisorbed methanol, formic acid, and reduced carbon dioxide.
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