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Nickel Nanorods Produced by Annealing Composite Oxide Films

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Abstract:

Nickel nanorods have been produced by annealing a dense composite film. The nanorods of 45–140 nm in lateral dimensions and 230–1400 nm in longitudinal dimensions were obtained by annealing NiO-YSZ composite films in H2 at 800 °C for one hour. The axis of the nanorods at the 220 direction was observed. The dense NiO-YSZ composite film was originally created by co-sputtering Ni and Zr-Y-Ce targets in Ar and O2 environment at 350 °C. Reduction of NiOx to Ni nuclei takes place on the surface of the film. The low crystallinity of the original composite film is believed to facilitate the NiO to grow into Ni nanorods on the discrete Ni seeds by diffusion.

Keywords: NANORODS; NANOWIRE; NICKEL; OXIDE FILM; REDUCTION

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2008.227

Publication date: 2008-01-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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