Constructed a bimetallic synergistic organic backbones electrode by the electrochemical deposition for high-performance flexible supercapacitors

A simple and convenient cathodic electrodeposition was developed to prepare a cerium-nickel-bimetallic organic framework (Ce/Ni-MOFs) on carbon cloth and directly used as a supercapacitor electrode material. The two metal ions produced a good synergistic effect and formed a unique folded morphology. The higher capacitance, charge transfer and excellent multiplicative performance of the bimetallic MOFs compared with the mono-metallic MOFs were found by electrochemical tests, which also demonstrated the scalability of the cathodic electrodeposition method. In addition, the flexible supercapacitor assembled based on Ce/Ni-MOFs and graphene oxide (denoted as Ce/Ni-MOFs//GO) achieved a high voltage of 1.7 V and exhibited high capacitance (298.8 mF cm-2), excellent energy density (120.1 & mu;Wh cm-2) and good durability (93 % after 5000 cycles).