Exploiting finite size effects in a novel core/shell microstructure
Embargo until
Date
2008-03-15
Journal Title
Journal ISSN
Volume Title
Publisher
American Institute of Physics
Abstract
Electrodeposition of Ni-Cu alloys at high Cu(II) concentration and large overpotentials results in phase separation with a unique microstructure characterized by features with a copper-rich core and a nickel-rich shell. By confining deposition to nanoporous channels with dimensions comparable to or smaller than the grain size results in the formation of solid Ni-Cu nanowires with a copper-rich core and a nickel-rich shell. Etching of the copper-rich core results in the formation of Ni-rich nanotubes. The magnetic properties of the Ni-Cu nanowires and the Ni nanotubes are investigated.
Description
Keywords
nanoporous channels, nickel-rich shell, copper-rich core, overpotentials, Cu(II) concentration, core-shell microstructure, phase separation, etching, nickel alloys, nanowires, nanotubes, grain size, nanotechnology, electrodeposition, copper alloys, magnetic properties, Ni-Cu
Citation
Journal of Applied Physics, 15 March 2008, vol.103, no.6, pp. 064313-1-6