Article ID Journal Published Year Pages File Type
1415580 Carbon 2012 9 Pages PDF
Abstract

A nested cones type carbon nanofiber (CNF) was exposed to ball milling with different milling times. Ball milled CNFs were investigated by transmission electron microscopy, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and thermogravimetric analysis. It was suggested that the milling energy could be consumed by CNF grinding and aggregating. The effect of mechanical stress causes a “flattening” of the CNFs with the loss of the nanofibrous structure, and the amount of carbon layers in crystallite decreases. Multiple structural changes induced by ball milling lead to fluctuations of sp3/sp2 and O/C ratios.

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Physical Sciences and Engineering Energy Energy (General)
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