Journal ArticleDOI
Water Content of Pseudoboehmite: A New Model for Its Structure
B.R. Baker,R.M. Pearson +1 more
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TLDR
In this article, a new model was proposed for the structure of pseudoboehmite, which accounts for the excess water, over that of boehmite, as being coordinated to aluminum ions located on crystallite surfaces.About:
This article is published in Journal of Catalysis.The article was published on 1974-05-01. It has received 85 citations till now. The article focuses on the topics: Pseudoboehmite & Boehmite.read more
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Book ChapterDOI
Aqueous chemistry of metal cations: Hydrolysis, condensation and complexation
TL;DR: In this paper, the partial charge model is used to describe and predict condensation reactions in aqueous solutions, which can lead to small solute condensed species (polyanions or polycations) or to the formation of an infinite network (colloids, gels, or precipitates).
Journal ArticleDOI
Preparation of alumina through a sol–gel process. Synthesis, characterization, thermal evolution and model of intermediate boehmite
TL;DR: In this article, a model of hydrated boehmite is proposed and the formula corresponding to a full monolayer of chemically adsorbed water molecules is AlO(OH)·055H2O.
Journal ArticleDOI
Structure and thermal behavior of nanocrystalline boehmite
Pierre Alphonse,Matthieu Courty +1 more
TL;DR: In this paper, the structural features of nanocrystalline boehmite synthesized by hydrolysis of aluminum sec-butoxide according to the Yoldas method are reported.
Journal ArticleDOI
Relationship between Crystallite Size and Bond Lengths in Boehmite
TL;DR: In this paper, the Rietveld method was used to refine boehmite's crystalline structure with X-ray powder diffraction, and it was shown that the hydrogen bond became weaker as the size of the crystal increased.
Journal ArticleDOI
Hydrothermal preparation and characterization of boehmites
TL;DR: In this paper, the Fourier transform infrared (FTIR) spectra of samples obtained at 180°, 200° or 220°C showed 25-40 cm−1 upward shift in the stretching and bending vibrations assigned to boehmites.
References
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Journal ArticleDOI
Aluminum + water reaction
W. Vedder,D. A. Vermilyea +1 more
TL;DR: In the case of pseudoboehmite, the surface of the oxide is first hydrolyzed and then dissolves to yield soluble species which either remain in solution or, at intermediate values of pH, precipitate as a porous hydroxide as discussed by the authors.
Journal ArticleDOI
A Study of Adsorbed Wateron Silica Gel by Nuclear Resonance Techniques.
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