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The electrochemical corrosion behaviors of single-walled carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (MWNTs) were investigated with potentiostatic oxidation at 1.2V for 120h. The surface oxygen contents of the two types of carbon nanotubes were analyzed by cyclic voltammograms (CV) and X-ray photoelectron spectroscopy (XPS). The increase in oxygen content on the SWNTs surface is higher...
The resistance to electrochemical oxidation of carbon black (Vulcan XC-72) and chemical vapor deposited multiwalled carbon nanotubes (CVD-MWNTs), both widely-used as catalyst supports for low temperature fuel cells, is investigated with potentiostatic oxidation in 0.5molL −1 H 2 SO 4, which mimics the working conditions of low temperature fuel cells. The surface oxygen of oxidized...
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