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Ordered mesoporous materials with specific microporosity in the mesopore walls can be assembled by a secondary templating synthesis departing from a clear subcolloidal suspension dedicated to the tetrapropylammonium (TPA) mediated synthesis of colloidal Silicalite-1. A typical member of this material family is Zeotile-2. Zeotile-2 is mesostructurally similar to the cubic MCM-48 material with exceptional...
The oxygen content in Sr 2 MnGaO 5+δ brownmillerite can be smoothly varied in the −0.03⩽δ⩽0.13 and 0.41⩽δ⩽0.505 ranges by annealings at 415°C at partial oxygen pressure ranging from 10 −5 atm to 1 atm. Between δ=0.13 and δ=0.41 the mixture of the reduced and oxidized phases is formed. The structures of some representative members of Sr 2 MnGaO 5+δ series were...
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