- 作者: 高同齋
- 作者服務機構: Department of Chemical Engineering, Sun-Moon University, 100 Galsan-Ri, Tangjeong-Myun, Asan City, Chungnam, 336-708, S. Korea
- 中文摘要: The feasibility of poly(vinyl alcohol)(PVA)/sulfosuccinic acid(SSA)/heteropolyacid (HPA) composite membranes was investigated to apply for direct methanol fuel cells (DMFC). The composite membranes were prepared by the solution casting method and their properties were examined. The FTIR spectra showed that the Keggin unit of HPA was preserved in the composite membranes and that specific interactions were involved between PVA and HPA. The composite membranes showed uniform distribution of PWA particles in the PVA/SSA/PWA composite membranes by FE-SEM. The HPA bleeding out was observed to decrease with increasing HPA concentration. The proton conductivity of PVA/SSA/HPA composite membranes improved at low HPA concentration (5-10 wt.%), while those properties decreased as HPA concentration increased over 10 wt.%.
- 英文摘要: --
- 中文關鍵字: Poly(vinyl alcohol); Sulfosuccinic acid; Phosphotungstic acid; Silicotungstic acid; Direct methanol fuel cell.
- 英文關鍵字: --