Selective adsorption and alignment behaviors of double- and multiwalled carbon nanotubes on bare Au and Si[O.sub.2] surfaces

Article Abstract:

The selective adsorption and alignment behaviors of double- and multiwalled carbon nanotubes (dwCNTs and mwCNTs) on self-assembled monolayer (SAM) patterns, bare Au, and Si[O.sub.2] surfaces are studied. The dwCNTs and mwCNTs have displayed stronger affinity to polar SAMs, bare Au and Si[O.sub.2] surfaces than to nonpolar SAM surfaces and it is also found that the adsorption probability of smaller CNTs are higher than that of larger CNTs.

Industrial inorganic chemicals, not elsewhere classified, Gold Compounds, Nanotubes

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Three-dimensional mesoporous titanosilicates prepared by modified sol-gel method: Ideal gold catalyst supports for enhanced propene epoxidation

Article Abstract:

Mesoporous titanosilicates with 1-12 mol % Ti content and three-dimensional wormhole-like mesoporosity are prepared by a modified sol-gel technique. Sorption analysis state that there is little change in the surface properties with increasing Ti concentration in the samples which implies that Ti atoms either are well-dispersed on the walls of the silica matrix or are present inside the framework with no pore blocking effect.

Science & research, Research, Oxidation-reduction reaction, Oxidation-reduction reactions, Titanium compounds

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