Abstract
We attempted to fabricate and evaluate various nanofibrous multi layer structures and composite structures by using a multiple-nozzle electrospinning under various AC high voltage. To electrospun fibers, we prepared two kinds of precursor solutions. One is an aqueous solution containing poly (vinyl pyrrolidonel) (PVP) and metal nitrates. Another is slurry containing alcohol, poly (vinyl butyral) (PVB, Woko, Mw=340000 g/mol) and oxide powder. This method enables to make a composite fibrous structure that consists of an intertwined nano fibers with different composition. Adjusting an alcoholic vapor pressure of the synthesized atmosphere can variously change the structure. Therefore, it might be effective in the production of electrodes with a high specific surface area necessary for the improvement of reaction efficiency of the electrochemical reactor.
