Spatial doping of gold on the core, surface and interlayer spaces of the titania nanotube was successfully demonstrated using a new synthesis procedure. The titanium-containing precursor was first converted into an intermediate layered nanostructure followed by their exfoliation and conversion into nanotube structure. Gold precursors with different affinity for the layered nanostructure are introduced to control the spatial location of the gold in the final nanotube. Precursor with low affinity to the layered nanostructure will preferentially decorate the nanotube surface, whereas strong affinity will lead to gold being embedded between the interlayer spaces of the nanotube. Intermediate chemical affinity achieved through chemical alteration will result in gold slugs or gold nanoclusters filling the core volume of the nanotubes. Spectroscopic study was carried out to investigate the chemistry and electronic properties of the spatially doped gold titania nanotubes.<br/>

Nanoconfinement of gold on the spatial location of titania nanotubes

249th National Meeting (2015)

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