燃料电池用磺化聚醚醚酮质子交换膜的研究  

SULFONATED POLY(ETHER ETHER KETONE) MEMBRANES FOR PROTON EXCHANGE FUEL CELL

作　　者：邢丹敏[1] 付永柱[1] 刘富强[1] 刘永浩[1] 衣宝廉[1] 张华民[1] 

机构地区：[1]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《高分子材料科学与工程》2005年第3期282-285,共4页Polymer Materials Science & Engineering

基　　金：中国科学院"九五"重大项目(KY95T-05-01);中国科学院创新工程重大项目(KGCX1-Y-04)资助

摘　　要：通过浓硫酸磺化法制备了具有不同磺化程度的磺化聚醚醚酮(SPEEK),并对此种质子交换膜进行了物化性能和H2/O2质子交换膜燃料电池性能研究,实验结果表明,SPEEK膜具有较理想的力学稳定性和气体渗透率,它的微观结构和质子传导性能与Nafion○R膜有所不同,经过其H2/O2质子交换膜燃料电池的性能研究,SPEEK膜能够保证电池在200h内稳定运行,有希望成为PEMFC用质子交换膜材料。Sulfonated poly(ether ether ketone) (PEEK) with various degree of sulfonation were prepared by concentrated sulfuric acid. The chemical physics performance and H_2/O_2 PEMFC performance of these SPEEK membranes were investigated. It is found that the SPEEK membranes are mechanical durable and oxygen permeability low. The TEM electron micrographs and proton conductivity show that SPEEK membrane is different from the Nafion^(○R) membrane. The performance of H_2/O_2 PEMFC with SPEEK membrane is superior to that of Nafion^(○R) 115 membrane at low current density, after 200 h stability test at 500 mA/cm^2, the cell voltage shows no obvious drop.

关 键 词：燃料电池 磺化聚醚醚酮 质子交换膜 

分 类 号：TB383[一般工业技术—材料科学与工程]