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DOI: 10.1039/A700567I (Paper) Reference Section for: Chem. Commun., 1997, 801-802

Synthesis of a new solid acid: silica pillared lanthanum niobate with a supergallery

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Can-xiong Guo, Wen-hua Hou, Ming Guo, Qi-jie Yan and Yi Chen

Abstract

Stepwise intercalations of n-decylamine and oligosiloxanes followed by calcination at 823 K in air results in a thermostable supergallery layered lanthanum niobate; the new material shows an interlayer free spacing of 17.4 Å along with a high Brunauer–Emmett–Teller surface area of 251 m2 g-1; the acidity of the new pillared material is markedly enhanced with respect to the original lanthanum niobate.

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