Cobalt-gold composition nanostructures: synthesis characterization and their anti-oxidation
Cobalt one-dimensional flowers chains was synthesized through a mild hydrothermal method without any template and surfactant. Subsequently, cobalt-gold metal composition nanostructures were also prepared by using of reducing property of cobalt metal. Furthermore, the Co-Au composition sample could be retained with cobalt one-dimensional micro-wire structure except for the surface. The resulting chains superstructures were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy and the thermogravimetric analysis (TGA) measurement. This method may imply a simple and inexpensive way to prepare bimetallic composites superstructures in a large scale. Furthermore, these bimetallic composites could improve their anti-oxidation properties.
KeywordsCobalt Co3O4 Amaranth Electron Binding Energy Cobalt Metal
The present work was supported by the special funding support from Natural Science Foundation of Anhui Province (NO. KJ2010ZD07, No. KJ2008B172) and the National Science Foundation of China (NSFC) (Grants nos. 20771006).