Synthesis and catalysis activity of aluminum phosphate

Abstract

Catalyst activity of aluminum phosphate can be changed dramatically depending on their preparation. In this paper, the sol-gel process and precipitation process were desceibed. The characteristics of sol-gel process, fine, uniform-sized particles were obtained, and high specific surface area and high catalysis activity can be expected. As raw materials, aluminum isopropoxide and triethyl phosphate were used. Diethanolamine and 2-methoxyethanol were used as solvents. Aluminum phosphate were synthesized in three ways. Each synthesized aluminum phosphate had been dried for 24h at 353K. Dried samples had been sintered for 2h at 873K and additionally sintered for 2h at 1173K, 1273K, 1373K and 1473K in the air. The catalyst activity of sintered samples was validated by the decomposition of C₂F₆ and XDR analysis.