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Zeolitic imidazolate frameworks (ZIFs) are a new class of metal-organic materials built by tetrahedral metal ions and different imidazolate ligands. Own to the porous structure, exceptional thermal and chemical stability, ZIFs is considered to be promising candidates in various fields. In alkaline condition, the good catalytic activities of ZIF-9 for oxygen production were confirmed by its low overpotential, small tafel slope and high durability during oxygen evolution reaction. Furthermore, the cycling performance test of ZIF-9 shows that it can afford the highest capacitance after 3150 repeating cycles, then decreased slightly with furthermore charge–discharge cycles. The final specific capacitance of the ZIF-9 is 94.3% of its maximum value after 6000 cycles. These results show that ZIF-9 might be a capable electrode material for supercapacitor and water splitting electrocatalyst in the future.

ZIF-9 with Enhanced Surpercapacitor and Electrocatalytic for Oxygen Evolution Reaction Performances in Alkaline Electrolyte