Synthesis of AlPO4 and kinetics of thermal decomposition of AlPO4·H2O-H4 precursor

作者: B. Boonchom , S. Youngme , T. Srithanratana , C. Danvirutai

DOI: 10.1007/S10973-007-8420-1

关键词:

摘要: The thermal decomposition of aluminum phosphate monohydrate AlPO4·H2O-H4 was investigated in air using TG-DTG/DTA. decomposes one step and final product (AlPO4) studied by X-ray powder diffraction, FTIR FT-Raman spectroscopy. activation energies dehydration reaction were calculated through the isoconversional methods Ozawa Kissinger-Akahira-Sunose (KAS), possible conversion functions have been estimated comparative methods. energy for different techniques found to be consistent. kinetic model that better described Fn as simple n-order corresponding function is f(α)=(1-α)2.75 g(α)=-[1-(1-a)-1.75/(1.75)].

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