Influence of the nitridation parameters on the stoichiometry, structure and specific surface area of zirconium phosphate oxynitride catalysts
(1999) Journal of Materials Science — Vol. 34, n° 9, p. 2057-2063 (1999)
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- Abstract
- Oxygen can be exchanged by nitrogen atom in high surface specific and amorphous zirconium phosphate solids thank to nitridation process. Various nitridation parameters influence the O/N substitution. A minimum temperature of 550 degrees C is required for efficient nitridation whereas temperature higher than 850 and 1300 degrees C induces reduction of phosphorus and zirconium atoms respectively. In intermediate temperature range, O/N exchange increases with temperature as well as with time of nitridation. In these conditions, the ZrPON solids obtained are X-ray amorphous and a slight decrease of precursor specific surface area is observed (110-210 m(2) g(-1)). (C) 1999 Kluwer Academic Publishers.
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Fripiat, N., & Grange, P. (1999). Influence of the nitridation parameters on the stoichiometry, structure and specific surface area of zirconium phosphate oxynitride catalysts. Journal of Materials Science, 34(9), 2057-2063. https://doi.org/10.1023/A:1004551524765 (Original work published 1999)