P. X. Feng

TL;DR: In this article, the anodic Pt-Ru-Ni/C and the Pt−Ru/C catalysts for potential application in direct methanol fuel cell (DMFC) were prepared by chemical reduction method.

Abstract: Large-scale arrays of N-doped ZnO nanorods have been synthesized on quartz substrates by pulsed laser deposition techniques. The ZnO/N nanorods have a diameter of 150–200 nm and a length of 1–1.5 µm. X-ray photoelectron spectroscopy analysis confirmed the implantation of nitrogen into the nanorod arrays and Raman scattering proved that their wurtzite structure was retained with high crystal quality. Optical spectroscopy showed that the incorporation of nitrogen into the ZnO nanorods reduced the transmission in the visible wavelength range. Room temperature and 4.6 K photoluminescence measurements of ZnO/N nanorods revealed intense UV peaks similar to ZnO and, at cryogenic temperature, a blue emission peak at 2.652 eV with a full width at half maximum of ~83 meV.

TL;DR: In this paper, the island growth mechanism was used to explain the growth of ZnO nanostructures on metallic and semiconducting substrates by the pulsed laser deposition technique.

TL;DR: In this article, the influence of oxygen gas concentration on the nanoscale tungsten oxide structure was observed; it was responsible for the stoichiometric and morphology variation from a particle to a nanorods array.

TL;DR: In this article, nanocrystalline tungsten carbide thin films are deposited on quartz substrates using hot-filament chemical vapor deposition technique and the influence of the substrate temperature on the nanostructured tungststen carbonide thin film is studied.