摘要
本课题发展了一种应用于碱性阴离子交换膜燃料电池(AAEMFC)的新型电极结构,该结构采用垂直生长的Co-OH-CO_3纳米针阵列作为催化剂的有序载体。采用物理气相沉积将Pt以纳米结构薄膜的形式沉积在Co-OH-CO_3纳米针阵列表面从而形成Pt/Co-OH-CO_3纳米针阵列。通过热压转印将Pt/Co-OH-CO_3纳米针阵列转印到碱性阴离子交换膜上得到了新型阴极催化层。以该阴极结构制备的AAEMFC的最高功率密度为113mW/cm~2。
A novel cathode architecture using vertically aligned Co-OH-CO_3 nanoneedle arrays as ordered catalyst support for AAEMFC application is developed. A Pt nanosturcture thin film is prepared on the surface of Co-OH-CO_3 by sputter deposition to form Pt/Co-OH-CO_3 nanoneedle arrays. After transferring the Pt/Co-OH-CO_3 nanoneedle arrays on an alkaline anion exchange membrane by hot pressing, the novel cathode catalyst layer is formed. The AAEMFC with the prepared MEA shows a peak power density of 113 mW cm~(-2).
引文