Guo Yi, Wei Junsheng, Ying Yulong, Liu Yu, Zhou Weiqiang, Yu Qing
Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China.
School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, P. R. China.
Langmuir. 2023 Aug 15;39(32):11166-11187. doi: 10.1021/acs.langmuir.3c01205. Epub 2023 Aug 2.
Proton exchange membranes (PEMs), especially for work under intermediate temperatures (100-200 °C), have attracted great interest because of the high CO toleration and facial water management of the corresponding proton exchange membrane fuel cells (PEMFCs). Traditional polymer PEMs faced challenges of low stability and proton carrier leaking. Crystalline porous materials, such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), are promising to overcome these issues contributed by nanometer-sized channels. Herein we summarized the recent development of MOF/COF-based intermediate-temperature proton conductors. The strategies of framework engineering and pore impregnation were introduced in detail for raising proton conductivity. The proton-conducting mechanism was described as well. This spotlight will provide new insight into the fabrication of MOF/COF proton conductors under intermediate-temperature and anhydrous conditions.
质子交换膜（PEMs），特别是适用于中温（100 - 200°C）工作的质子交换膜，由于相应的质子交换膜燃料电池（PEMFCs）具有高CO耐受性和良好的水管理性能而备受关注。传统的聚合物质子交换膜面临着稳定性低和质子载体泄漏的挑战。晶体多孔材料，如金属有机框架（MOFs）和共价有机框架（COFs），有望克服由纳米尺寸通道带来的这些问题。在此，我们总结了基于MOF/COF的中温质子导体的最新进展。详细介绍了用于提高质子传导率的框架工程和孔浸渍策略。同时也描述了质子传导机制。这一聚焦将为中温和无水条件下MOF/COF质子导体的制备提供新的见解。
