Ultrathin NiCo-MOF Nanosheets for High-Performance Supercapacitor Electrodes

Metal–organic frameworks (MOFs) have attracted intensive attention for high-performance supercapacitors owing to their large specific surface area and tunable pore structure. Herein, ultrathin NiCo-MOF nanosheets are fabricated by a facile ultrasonication at room temperature and employed as a supercapacitor electrode material. The unique nanosheet-like structure of NiCo-MOF provides more electroactive sites and a shorter pathway for electron transfer and electrolyte diffusion, resulting in excellent electrochemical performance with a high specific capacitance of 1202.1 F g–1 at 1 A g–1. In addition, an asymmetric supercapacitor of NiCo-MOF//activated carbon was assembled in 2 M KOH electrolyte. It delivers an…

• NS
  National Science Foundation
• NN
  National Natural Science Foundation of China

  Awards: 21703209, 51572140
• NS
  Natural Science Foundation of Shanxi Province

  Awards: 201701D221085, 201801D121284, 201701D221086