非晶态硼化钴合金-还原石墨烯/棉织物柔性电极复合材料的制备与性能

本文采用浸渍-干燥法和化学还原法在常温常压条件下制备了非晶态硼化钴合金-还原石墨烯(CoB-RGO)/棉织物柔性复合电极。研究了不同Co2+浓度对CoB-RGO/棉织物复合电极结构形貌及电化学性能的影响。结果表明，Co2+浓度为0.14 mol/L时非晶态CoB呈相互交错开放型3D片状结构。与非晶态CoB/织物和RGO/织物复合电极相比，非晶态CoB-RGO/棉织物复合电极表现出更为理想的电化学性能。当电流密度为0.25 mA/cm2, 非晶态CoB-RGO/棉织物复合电极的比电容为218.8 F/g。此外，非晶态CoB-RGO/棉织物复合电极的电化学性能受折叠次数和折叠角度的影响较小，表明其具有良好的柔韧性。 

Preparation and properties of amorphous cobalt boride alloy-reduced graphene/ cotton fabric flexible electrode composite

Amorphous cobalt boride alloy-reduced graphene (CoB-RGO)/cotton fabric flexible composite electrodes were prepared by impregnation-drying method and chemical reduction method at room temperature and atmospheric pressure. The effects of Co2+ concentrations on the structural morphology and electrochemical properties of CoB-RGO/cotton fabric flexible composite electrodes were studied. The results show that amorphous CoB presents an open 3D sheet structure interlaced with each other when the concentration of Co2+ is 0.14 mol/L. Compared with amorphous CoB/fabric and RGO/fabric composite electrodes, amorphous CoB-RGO/fabric composite electrodes show the better electrochemical properties. With the current density of 0.25 mA/cm2, the specific capacitance of amorphous CoB-RGO/cotton fabric composite electrodes is up to 218.8 F/g. There is no obvious effect of folding times and folding angles on the electrochemical performance of CoB-RGO/cotton fabric composite electrodes, which indicates their good flexibility.