A facile and novel synthetic route to core-shell Al/Co nanocomposites

作者:Cheng Zhipeng; Li Fengsheng*; Yang Yi; Wang Yi; Chen Weifan
来源:Materials Letters, 2008, 62(12-13): 2003-2005.
DOI:10.1016/j.matlet.2007.11.003

摘要

The core-shell Al/Co nanocomposites are fabricated via a displacement reaction between Al and CoCl(2) with NH(4)F as a complexing agent and gelatin as a protective agent, and characterized by X-ray diffractometry (XRD), scanning electron microscopy (SEM) and energy dispersion spectrometry (EDS). The results show that a continuous layer of about 50 nm Co nanoparticles is covered on the surfaces of Al particles to form core-shell Al/Co nanocomposites. The relevant mechanism and several influencing factors are also discussed.