Technical Study on Preparation of Co/C Composite Nanofibers via Electrospinning

Abstract:

Co/C composite nanofibers are prepared through electrospinning. Effect of salt, Spinning humidity, receiving equipment and heat treatment on the formation, morphology and structure of composite fibers were investigated. The morphology of composite fibers was observed by scanning electron microscopy (SEM).It was found out that when the ambient humidity was high, the nanofibers were agglomerated into fiber bundles. When the roller receiving equipment was used, ordered nanofibers can be obtained. Only cobalt acetate-doped composite nanofibers maintained intact fiber morphology after pre-oxidation and carbonization. And Co²⁺ was completely reduced to face-centered cubic structured Co nanoparticle. The ideal preparation technology is as follows: the humidity at 30% or less, doping with organic salt of cobalt acetate.

• Periodical: Materials Science Forum (Volume 944)
• Pages: 666-670
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.944.666
• Online since: January 2019
• Authors: Sa Zhang*, Jian Jiang Wang, Fang Zhao
• Keywords: Co Nanoparticle, Electrospinning, Humidity, Receiving Equipment, Salt

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