With pore sizes in the range of 20–500 Å mesoporous materials are of use for extending zeolite-type chemistry, which is based on materials with a pore size of around 7 Å, to larger molecules. The pores can be produced by pillaring (the propping of layered materials) or by extending the template method used to produce zeolites. The new, ultra-large-pore materials recently presented by researchers from Mobil Oil Research are described and their production and application discussed
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