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We report a method for controllably fabricating a structurally stable array of multiwall carbon nanotubes (MWCNTs) with greatly enhanced surface area for catalyst loading as compared with a vertically aligned MWCNT forest. These structures may provide increased electrocatalytic activity for methanol oxidation reactions and oxygen reduction reactions in fuel cells. Potentiodynamic pretreatment is shown...
Efficient electrochemical treatments of multi-wall carbon nanotubes (MWCNTs) in acetonitrile were performed by cycling the applied potential on a carbon paper grown with MWCNTs between −2.000V and 2.000V (vs Ag/AgClO 4 ) at a scan rate of 0.5V/s. The tailored MWCNTs with obvious morphological modification could be further cut into short tubular structures through ultrasonic processing in ethanol...
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