Effect of Precursors on the Hydrothermal Synthesis of KAl(OH)2CO3 Powder

Abstract

Abstract:

KAl(OH)₂CO₃ powders with different morphology were synthesized by the hy-drothermal method using AlCl₃·6H₂O, Al(NO₃)₃·6H₂O, Al₂(SO₄)₃·12H₂O as the precursors at 120℃ for 24h. The results show that Al(NO₃)₃·6H₂O is the best precursor for the synthesis of KAl(OH)₂CO₃. The KAl(OH)2CO₃ powder synthesized in the hydrothermal aqueous with NO₃^-concentration of 1.2mol/L possesses particle sizes of less than 20nm, slenderness ratio of less than 5 , and good size distribution.

Key words: hydrothermal method, KAl（OH）₂CO₃, dawsonite

CLC Number:

TF123

ZHANG Xiang-Feng,WEN Zhao-Yin,GU Zhong-Hua,XU Xiao-He,LIN Zu-Xiang. Effect of Precursors on the Hydrothermal Synthesis of KAl(OH)₂CO₃ Powder[J]. Journal of Inorganic Materials.

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Effect of Precursors on the Hydrothermal Synthesis of KAl(OH)₂CO₃ Powder

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