Tri- and quadri-metallic ultrathin nanowires synthesized by one-step phase-transfer approach.
We synthesized, at room temperature, noble multi-metallic (Pt-Pd-Rh, and Pt-Pd-Au-Rh) ultrathin nanowires using a one-step phase-transfer approach. These multi-metallic nanowires then were characterized by x-ray diffraction, transmission electron microscopy, and scanning transmission electron microscopy. The diameters of the nanowires range from 2 to 2.7 nm, and their lengths from tens to hundreds of nanometers. The multi-metallic nanowires were determined to be face-centered cubic structures. The compositions of the nanowires are quite uniform from wire to wire. Our results verify that the phase-transfer is a robust method for synthesizing various multi-metallic nanowires, which are expected to have potential applications in catalysis, magnetic storage, and bio-sensors.
Han
Wei-Qiang
WQ
Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, USA. whan@bnl.gov
Su
Dong
D
Wu
Lijun
L
Aoki
Toshihiro
T
Zhu
Yimei
Y
D006046:Gold / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission / Q000379:methods; D036103:Nanotechnology / Q000379:methods*; D053770:Nanowires / Q000737:chemistry* / Q000648:ultrastructure; D010165:Palladium / Q000737:chemistry; D010984:Platinum / Q000737:chemistry; D012238:Rhodium / Q000737:chemistry; D014961:X-Ray Diffraction
D010984:Platinum; D010165:Palladium; D006046:Gold; D012238:Rhodium