Thomas R. Pauly

Non-ionic surfactant assembly of ordered, very large pore molecular sieve silicas from water soluble silicates

Very large pore hexagonal and cellular foam-like molecular sieve silicas with well cross-linked framework walls (denoted MSU-H and MSU-F, respectively), have been prepared from soluble silicate precursors under neutral pH conditions.

Non-ionic surfactant assembly of wormhole silica molecular sieves from water soluble silicates

Thermally stable mesoporous silica molecular sieves with wormhole framework structures, previously obtainable only from silicon alkoxides, have been prepared from low cost soluble silicate precursors in the presence of non-ionic surfactants as structure directors.

A new nonionic surfactant pathway to mesoporous molecular sieve silicas with long range framework order

Mesoporous molecular sieve silicas with ordered structures are formed from tetraethylorthosilicate (I0) in a new reaction pathway based on nonionic R(EO)nH surfactants (N0) and denoted (N0Mn+)I0, wherein electrostatic forces are introduced into the assembly process through –(EO)nH complexation of small metal cations (Mn+ = Li+, Co2+, Ni2+, Mn2+ and Zn2+).