CuCo_(2)O_(4)纳米片在有序宏孔电极板上的制备

Preparation of CuCoO Nanosheets on the Ordered Macro-Porous Electrode Plate

采用水热法在表面镀镍的有序宏孔电极板(OMEP)的表面和侧壁制备了金属氧化物——CuCo_(2)O_(4)纳米片,获得一种微型且高效的活性电极材料。通过扫描电子显微镜(SEM)观察到,在OMEP上生长的纳米结构由CuCo_(2)O_(4)纳米片组成。与在OMEP上生长的Co_(3)O_(4)纳米材料相比,制备的CuCo_(2)O_(4)/OMEP电极具有更好的电化学性能,在30 mA·cm^(-2)的电流密度下电极比电容为1334 F·g^(-1)(10 F·cm^(-2)),循环5000次后的循环稳定性为86%。这种独特的三维有序多孔结构使电子和离子的输运更加便利,增大了液固界面面积,提高了活性材料的利用效率,同时还减小了电极的质量和尺寸。

Metallic oxide CuCo_(2)O_(4)nanosheets were prepared by the hydrothermal method on the surface and side wall of a surface nickel-plated ordered macro-porous electrode plate(OMEP),and an efficient micro active electrode material was obtained.The nanostructures grown on OMEP were observed by the scanning electron microscope(SEM),indicating that nanostructures were composed of CuCo_(2)O_(4)nanosheets.The prepared CuCo_(2)O_(4)/OMEP electrode has much better electrochemical performance compared with the Co_(3)O_(4) nano material grown on OMEP.At a current density of 30 mA·cm^(-2),the electrode specific capacitance is 1334 F·g^(-1)(10 F·cm^(-2)),and the cycling stability is 86%after 5000 cycles.The unique three-dimensional ordered porous structure facilitates the transport of electrons and ions,increases the liquid-solid interface area,improves the utilization efficiency of the active material and meanwhile reduces the mass and size of the electrode.