Nitrogen incorporation in an Al(sub 0.5)Ga(sub 0.5)PO(sub 4) amorphous solid Studied with (super 27)Al and (super 31)P NMR

The series of amorphous nitrided galloaluminophosphate 'AlGaPON' catalysts with nitrogen contents varying from 0 to 23.3 wt% were obtained by nitriding Al(sub 0.5)Ga(sub 0.5)PO(sub 4) precursor under ammonia flow at 750 degreeC in a tubular furnace. The results compared by using X-ray absorption spectroscopy (XAS) and X-ray photoelectrons spectroscopy on five samples is described.