离子液体提升燃料电池阴极催化剂性能  

Ionic liquid-boosted performance of fuel cell cathodic catalyst

作　　者：杨代辉 刘兆恩 高杨 张世国 YANG Dai-hui;LIU Zhao-en;GAO Yang;ZHANG Shi-guo(College of Materials Science and Engineering,Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology,Hunan University,Changsha,Hunan 410082,China)

机构地区：[1]湖南大学材料科学与工程学院湖南省先进碳材料与应用技术重点实验室

出　　处：《电池》2019年第6期458-462,共5页Battery Bimonthly

基　　金：国家自然科学基金(51772089,21872046);湖南省杰出青年基金(S2017JJJCQN0149)

摘　　要：直接碳化纳米限域离子液体[BMIm][FeCl4]的沸石咪唑骨架材料(ZIF-8),得到铁氮碳(FeNC)催化剂。用非质子型离子液体1-丁基-3-甲基咪唑双三氟甲磺酰亚胺盐([BMIm][NTf2])表面修饰FeNC催化剂,半波电位达到0.848 V(vs.RHE),比未经离子液体修饰时正21 m V,比Pt/C正33 m V,稳定性提高5%。Iron nitrogen carbon( FeNC) catalyst was obtained by direct carbonization of nano-confined ionic liquid[BMIm][FeCl4]in zeolitic imidazolate framework material( ZIF-8). After surface modification by 1-butyl-3-methylimidazolium bis( trifluoro methylsulfonyl) amide( [BMIm][NTf2]),the half-wave potential of the Fe NC catalyst further reached 0. 848 V( vs. RHE),which was21 m V higher than that without ionic liquid modification,33 m V higher than that of Pt/C and the stability increased by 5%.

关 键 词：氧还原反应 离子液体 表面修饰 铁氮碳(FeNC) 

分 类 号：TM911.[电气工程—电力电子与电力传动]