Salt-recrystallizationpreparation of metal organic framework derived porous carbon support forhighly-efficientproton exchange membrane fuel cell

We report a novel porous and high-specific surface area carbon support material (C-framework) for PEMFC by the salt-recrystallization-fixing HKUST-1 template. We believe this will be a universal method to convert high-temperature unstable MOF materials, such as HKUST-1. NaCl crystals serve as completely closed nanoreactors, which facilitate graphitization and structure inheritance. Electrochemical evaluation showed that the C-framework loaded with Pt nanoparticles exhibits high ORR activity and excellent electrochemical performance in acidic electrolytes. The PEMFC performance reached a maximum power density of 780 mW/cm(2)under the H-2/air testing condition in ultra-low Pt loading (cathode 0.1 mg/cm(2)).

Automated summary

A novel carbon support material (C-framework) for PEMFC was reported using salt-recrystallization-fixing HKUST-1 template. The C-framework loaded with Pt nanoparticles exhibited high ORR activity and excellent electrochemical performance in acidic electrolytes. The PEMFC performance reached a maximum power density of 780 mW/cm(2) under ultra-low Pt loading.