A high-silica zeolite with a 14-tetrahedral-atom pore opening
Article Abstract:
A high-silica zeolite with a 14-tetrahedral-atom pore opening is thermally stable. Acidic properties of the zeolite, named University of Texas at Dallas number 1 (UTD-1), are so strong that the zeolite should be useful as a catalyst. The synthesis of UTD-1 involves bis-(pentamethyl-cyclopentadienyl)-cobalt(III) hydroxide as a structure-directing agent. The presence of nitrogen and about 23 torr H2O has an insignificant affect on the crystallinity which remains almost intact below 1,000 degrees celsius.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Commensurate 'freezing' of alkanes in the channels of a zeolite
Article Abstract:
A computer simulation-based study of molecular fluids reveals that interactions between the alkane chain and zig-zag pores of zeolites causes straight-chain hydrocarbons to adsorb on silicalite in a novel type of phase transition. A similarity between the lengths of the alkanes and the zeolite channels causes the alkanes to 'freeze' in a configuration commensurate with the pore structure. A kink is observed in the adsorption isotherms of the alkanes due to this 'freezing' phenomenon.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
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Photochemical energy storage in a spatially organized zeolite-based photoredox system
Article Abstract:
An innovative spatially organized zeolite-based photoredox system has been developed to store photochemical energy. The system achieves high levels of net charge-separation efficiency by maximizing photoinduced charge transfer. Adjacent-cage assemblies are used to hold donor, acceptor and sensitizing intermediate molecules. Further research is being done to ascertain details on zeolite-entrapped assembly structures.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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