Synthesis of heteropolyoxometalate-pillared Mg/Al, Mg/Ga, and Zn/Al layered double hydroxides via LDH-hydroxide precursors

被引：46

作者：

Weir, MR ^{[1
]}

Kydd, RA ^{[1
]}

机构：

[1] Univ Calgary, Dept Chem, Calgary, AB T2N 1N4, Canada

来源：

INORGANIC CHEMISTRY | 1998年 / 37卷 / 21期

关键词：

D O I：

10.1021/ic9805067

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report the synthesis of acidic (Zn/Al-POM) and basic (Mg/Al-POM and Mg/Ga-POM) materials by a general route previously demonstrated only for basic LDH materials. In each case, H2W12O406- or PW11O397- pillared materials with significant BET surface areas were obtained. Stringent control over the M2+:M3+ ratio in the layers of the POM-pillared products was not possible, and loss of M2+ was found to be the most severe for the Mg/Ga and Zn/Al materials. Infrared analysis indicated that complete exchange of adipate anions in the precursor material by POM anions was achieved except for the Zn/Al analogues. Removal of the residual adipate anions after washing the product with a dilute base solution was possible, but a concomitant decrease in surface area could not be avoided.

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页码：5619 / 5624

页数：6

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