Role of phosphates in the promotion of silver catalysts for partial oxidation: I. Structure and properties of phosphates on the surface of polycrystalline silver
作者： A. S. Knyazev , A. I. Boronin , O. V. Vodyankina , S. V. Koshcheev , L. N. Kurina
DOI: 10.1007/S10975-005-0022-Y
关键词:
摘要: The chemical composition, structure, and properties of an H3PO4-promoted polycrystalline silver foil are studied by XPS. surface the doped sample contains oxygen in two states with binding energies 531.1 533.0 eV. Heat treatment results clusters distributed polyphosphate matrix. It follows from TDS data that promoted catalyst a strongly bound species desorbs at ~900 K. is believed stabilized phosphate matrix active sites on phosphorus-promoted catalyst.
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