制作
共价有机骨架
质子交换膜燃料电池
膜
共价键
电解质
材料科学
质子
电导率
化学工程
多孔性
质子输运
氢
化学稳定性
燃料电池
电极
纳米技术
化学
有机化学
复合材料
物理化学
病理
工程类
替代医学
物理
医学
量子力学
生物化学
作者
Shuping Jia,Peng Zhao,Qi Liu,Yao Chen,Peng Cheng,Yi Yang,Zhenjie Zhang
标识
DOI:10.1007/s40242-022-1514-2
摘要
Exploring new materials to manufacture proton-conducting membranes(PEMs) for fuel cells is highly significant. In this work, we fabricated two robust and highly crystalline porous covalent organic frameworks(COFs) via a stepwise synthesis strategy. The synthesized COF structures are integrated into high-density azo and amino groups, which allow to anchor acids for accelerating proton conduction. Moreover, the COFs exhibit good chemical stability and high hydrophilicity. These features make them potential platforms for proton conduction applications. Upon loaded with H3PO4, the COFs(H3PO4@COFs) deliver a high proton conductivity of 3.15×10−2 S/cm at 353 K under 95% relative humidity(RH). Furthermore, membrane electrode assemblies are fabricated using H3PO4@COF-26 as the solid electrolyte for a single fuel cell outputting a maximum power density of 18 mW/cm2.
科研通智能强力驱动
Strongly Powered by AbleSci AI