Mechanochemical Synthesis of Double Hydroxides
Tóm tắt
It has been demonstrated that the formation of magnesium-aluminium double hydroxides [Mg(1 − X)Al
X
(OH)2]
X+(A
n−
X/n
) • m H2O, (A–Cl−, NO−
3, SO2−
4) occurs during mechanical activation of the mixture of magnesium hydroxide (brucite) with aluminium chloride, nitrate and sulphate in high-energy planetary-type activators. The effect of activation time on the formation of the double hydroxide has been investigated. Thermal decomposition of the chloride form of the double hydroxide has been studied.
Tài liệu tham khảo
F. Cavani, F. Trifiro, and A. Vaccari, Catal. Today 11, 173 (1991).
V. R. L. Constantino and T. J. Pinnavaia, Inorg. Chem. 34, 883 (1995).
W. T. Reichle, J. Catal. 94, 547 (1985).
R. Allman, Acta Crystallogr. A24, 972 (1968).
R. Allman and H. P. Jepsen, Neues Jahrb. Mineral. Monatsh. 12, (1969).
H. F. W. Taylor, Min. Mag. 39, 377 (1973).