Silver phosphates, chemical synthesis

The analysis of physical-chemical data shows that both phosphate structure and method of synthesis determine the amount of reduced silver. The determinative factor in silver reduction process with narrow size distribution is a uniform distribution of Ag and stracture units in phosphates during synthesis. The silver-containing phosphates treated in reducing media show the catalytic activity in the process of ethylene glycol oxidation into glyoxal, which depends on the catalyst composition, stmeture and amount of reduced Ag. 

In the present work the catalytic activity, stracture, plysical and chemical properties of silver-containing zirconium phosphates, containing different amounts of silver, and synthesized using sol-gel, co-precipitation and ion exchange methods have been studied. It was shown that the method of phosphate synthesis determines the final composition, structure and catalytic properties. The phosphates, treated in reducing media, exhibit catalytic activity in the process of ethylene glycol oxidation into glyoxal. 

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