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Novel P-containing oxynitrides VZrPON were tested besides their VZrPO oxide precursors in the ammoxidation of 3-picoline and compared with P-free VZrON catalysts for analysing the influence of both incorporated P and N on the catalytic performance. Results of XRD, XPS, 31 P and 51 V MAS NMR as well as of simultaneous in situ-EPR/UV–vis/Raman studies during nitridation have shown that...
Industrial vanadium phosphate (VPO) samples (vanadyl phosphate hemihydrate precursor compound, freshly calcined and equilibrated vanadyl pyrophosphate solids) shaped with polysilicic acid (PSA) were characterized and used as catalysts for the ammoxidation of 3-picoline to nicotinonitrile. Catalyst characterization with N 2 -adsorption, XRD, IR spectroscopy, UV–Vis-DRS and XPS provide information...
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