Do all wurtzite nanotubes prefer faceted ones?

Mechanisms of the wurtzite to rocksalt transformation in CdSe nanocrystals.

We study the pressure-driven phase transition from the four-coordinate wurtzite to the six-coordinate rocksalt structure in CdSe nanocrystals with molecular dynamics computer simulations. With an ideal gas as the pressure medium, we apply hydrostatic pressure to spherical and faceted nanocrystals ranging in diameter from 25 to 62 A. In spherical crystals, the main mechanism of the transformatio...

An ab initio Study of a Model of Single Wall GaN Nanotubes with Oxygen and Zinc as Impurities: Structural and Electronic Properties

We report a comprehensive theoretical study of structural and electronic properties of substitutional oxygen and zinc contaminations in a model of single wall GaN nanotubes by means of ab initio supercell calculations. Our investigation yields many interesting results. The following ones deserve to be developed. Oxygen forms a shallow donor in the single wall GaN nanotubes as in bulk GaN polyty...

Carbon nanotube graphoepitaxy: highly oriented growth by faceted nanosteps.

Single-wall carbon nanotubes grow along self-assembled nanosteps of annealed miscut C-plane sapphire. Depending on the miscut orientation and annealing conditions, graphoepitaxy leads to the formation of either unprecedentedly straight and parallel nanotubes, with angular deviations as small as +/-0.5 degrees , or to wavy nanotubes loosely conformal to sawtooth-shaped faceted nanosteps.

Supplementary Information for Rational Preparation of Faceted Platinum Nanocrystals Supported on Carbon Nanotubes with Remarkably Enhanced Catalytic Performance

Rational preparation of faceted platinum nanocrystals supported on carbon nanotubes with remarkably enhanced catalytic performance.

Faceted platinum nanocrystals supported on carbon nanotubes were prepared using NO2- as a crucial shape-controlling agent. The composites exhibit high electrochemical catalytic activity for oxygen reduction facilitated by the cooperation between the Pt{111} facets and atomic steps, and extremely high selectivity for the oxidation of glycerol to glyceraldehyde.