电源技术2017，Vol.41Issue(7)：989-993,5.
用于碱性膜燃料电池的SEBS基阴离子交换树脂
Anion exchange ionomer based on SEBS for anion exchange membrane fuel cell
摘要
Abstract
Alkaline anion exchange ionomer (AEI),as the ion conductor and binder for the catalyst layer of anion exchange membrane fuel cell (AEMFC)membrane electrode assembly,plays an important role in AEMFC's performance and stability.Styrene-ethylene/butylene-styrene (SEBS) was chosen as the starting material and pendant quaternary ammonium-based ionomers-QASEBS was prepared via chloromethylation,quatemization and alkalization,which was insoluble in water,but could dissolve in low boiling point solvent,such as the mixture of n-propyl alcohol and tetrahydrofuran.The QASEBS membrane was prepared by casting,and the membrane water uptake,swelling ratio,ion exchange capacity and hydroxide conductivity was characterized.The results show that the membrane water uptake and swelling ratio are 57％ and 20％ at 25 ℃,respectively;the ion exchange capacity is 0.21 mmol/g at 30 ℃;the hydroxide ion conductivity reaches 1.62 x 10-2 S/cm at 80 ℃.The hydrogen/oxygen AMFC using this AEI exhibites good performance and durability.The open circuit voltage is 1.04 V and the maximum power density is 153 mW/cm2.Besides,during the durability test,the initial cell voltage is above 0.7 V at 100 mA/cm2.After 30 hours,the cell voltage almost remains unchanged.关键词
阴离子交换树脂/嵌段聚合物/膜电极/碱性膜燃料电池Key words
anion exchange ionomer/block copolymer/membrane electrode assembly/alkaline membrane fuel cell分类
信息技术与安全科学引用本文复制引用
高学强,俞红梅,贾佳,刘艳喜,邵志刚..用于碱性膜燃料电池的SEBS基阴离子交换树脂[J].电源技术,2017,41(7):989-993,5.基金项目
国家自然科学基金项目(91434106) （91434106）
国家重点基础研究发展计划(“973”课题)(2012CB215504) （“973”课题）
