| 초록 |
One of the critical issues towards the commercialization of Direct Methanol Fuel Cell (DMFC) is the performance of the electrode catalyst. Because the performance of supported catalysts depends on the property of support materials, new support materials are needed in order to enhance the performance and lower the cost of electrocatalysts. Carbon nanofibers were prepared by an electrospinning technique from various carbon precursors, such as polyacrylonitrile, polyvinyl acetate, and cellulose acetate. The prepared carbons were finally used as a support for Pt-Ru alloy catalyst. The electrode was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Electrochemical performance was measured by cyclic voltammetry (CV). Electrospun carbon nanofiber electrodes showed higher catalytic activity in the DMFC performance than commercial E-TEK catalysts. |
