Abstract

Amoco M40 PAN-based carbon fibers were electrochemically oxidized in a pilot plant system. The changes in the surface of the fibers were monitored using monochromatic x-ray photoelectron spectroscopy (XPS). A parallel experiment using achromatic x-radiation was conducted for comparison. Other graphitic materials were also studied. Decomposition of the fiber due to x-ray exposure could be effectively eliminated by using the monochromator. The use of monochromatic x-radiation produced considerable narrowing in the linewidth of the graphitic peak. This allowed the curve fitting of the component peaks to be performed with significantly greater confidence. © 1997 John Wiley & Sons, Ltd.

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