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Different modifications of multiwalled carbon nanotubes (MWNTs) have been performed to increase specific capacitance of this material for supercapacitor application. MWNTs used in this work were obtained by decomposition of acetylene at 600 and 700 °C on cobalt catalyst supported on NaY zeolite, silica or produced from a Co x Mg 1−x O solid solution. Coating of MWNTs by conducting...
The influence of surface functional groups on activated carbons on the adsorption and desorption of lithium ions, present in trace amounts in aqueous solution, has been studied in the absence and presence of an applied electric field.Application of an electric current during the experiments dramatically increased the sorption of the ions. Moreover, lithium could be released into the solution by reversing...
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