水酸化カリウム水溶液中での気相法炭素繊維の酸化

抄録

The weight loss rate of vapor grown carbon fibers (VGCF) was investigated in a KOH aqueous solution during steady-state polarization measurements in the potential range 0.45 to 0.75 V against a Hg|HgO reference electrode. In particular, we measured the amount of oxygen produced by a dissolved oxygen gas sensor and used the results to calculate the weight loss rate (ΔW) of VGCF by the carbon oxidation reaction (COR). When the concentration of KOH was 0.1 M, the ΔW is almost same as that reported in a previous report. In addition, a decrease in the onset potential of COR as well as a significant increase in the ΔW was found when the concentration of KOH was increased to 1.0 M.