Pillared Materials from Layer Titanosilicates?

Giovanni Ferraris

doi:10.4028/www.scientific.net/SSP.111.47

Paper Titles

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Pillared Materials from Layer Titanosilicates?
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HomeSolid State PhenomenaSolid State Phenomena Vol. 111Pillared Materials from Layer Titanosilicates?

Pillared Materials from Layer Titanosilicates?

Abstract:

Heterophyllosilicates are mineral phases based on layers that are comparable with those of the better known TOT phyllosilicates. Precisely, the HOH layers occurring in the heterophyllosilicates are formally obtained from a TOT layer by periodically introducing five or six co-ordinated titanium in the silicatic T sheets that sandwich the octahedral O sheet. The structural analogy between smectites, from which the mesoporous pillared clays are prepared, and heterophyllosilicates suggests that in principle pillared materials based on HOH layers could be prepared. Field observations show that swelling can occur in heterophyllosilicates; however, these minerals are rare and their synthetic analogues must first be prepared before attempting pillaring, an operation that might lead to interesting results for materials science owing to the presence of titanium.

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Periodical:

Solid State Phenomena (Volume 111)

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47-50

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https://doi.org/10.4028/www.scientific.net/SSP.111.47

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Online since:

April 2006

Authors:

Giovanni Ferraris

Keywords:

Heterophyllosilicates, Mesoporous Material, Pillared Materials, Titanosilicate

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