A series of model-supported WO3 catalysts were synthesized on preformed Al2O3, Nb2O5, TiO2, and ZrO2 supports by impregnation of aqueous ammonium metatungstate, (NH4)10W12O41·5H2O. The molecular and electronic structures of the supported tungsten oxide phases were determined with in situ Raman and UV–vis spectroscopy, respectively. The supported tungsten oxide structures are the same on all oxi...

C60-terminated self-assembled monolayers (SAMs) were generated on the surface of Au(111) by the adsorption of unsymmetrical disul®des having saturated hydrocarbon backbone structures comprised of six (C-6) and eleven (C-11) carbon atoms. The formation of oriented monolayer ®lms from these adsorbates was con®rmed by ellipsometric thickness and contact angle measurements. The morphologies and fri...

This report describes the usc of surfacc plasmon spectroscopy to study the effect of surfacc wettability on the nonspecific adsorption of proteins and dctcrgcnts to self-assembled monolayers (SAMs) of alkanethiolatcs on gold. Thc adsorption of both proteins and detcrgcnts to uncharged SAMs showed a gencral depcndcncc on the wettability of the surface as determincd by thc contact anglc of watcr ...

A superlayer test has been adapted for the measurement of the fracture energy between epoxy thin films and self-assembled monolayers (SAM’s) on AuyTiySi substrates. The “arrest” mode of analysis has been shown to provide consistent results, particularly when relatively wide lines are used to encourage lateral decohesions. The fracture energy, Gi , of the interface between the monolayer and the ...

Using density functional theory and the Bardeen, Tersoff, and Hamann formalism we have calculated spin-polarized electron transport in a system involving a nonbonded magnetic probe tip and a self-assembled monolayer SAM of benzene-1,4-dithiol on a Ni 111 substrate. A significantly higher tunneling current is obtained for a configuration in which the spin of the probe tip is aligned parallel to ...

Sidewall functionalized multi-walled carbon nanotubes can be covalently bound parallel to a silicon surface via a self-assembled acid-terminated monolayer used as an organic molecular glue.