Influence of the nature of precipitating basic agent on the synthesis of catalytic magnesium phosphate materials

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• 作者：Mhamed Sadiq ; Mohammed Bensitel ; Carole Lamonier ; Jacques Leglise
• 关键词：Magnesium pyrophosphate ; Magnesium orthophosphate ; XRD ; DTA– ; TGA ; ³¹P MAS-NMR
• 刊名：Solid State Sciences
• 出版年：2008
• 出版时间：April 2008
• 年：2008
• 卷：10
• 期：4
• 页码：434-437
• 全文大小：670 K

文摘

During the preparation, the nature of the precipitating agent strongly influences the synthesis of magnesium phosphate. Ortho and pyrophosphate can be obtained with the use of NaOH and NH₄OH, respectively. The solids obtained were investigated as synthesized or after calcination by various physico-chemical techniques such as X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential thermal analysis (DTA). The compounds calcined at 773 K have been further characterized by ³¹P MAS-NMR spectroscopy.