微波辅助金属有机骨架材料制备无定形Co3O4花球及其电化学性能

Microwave assisted metal organic framework material preparation and electrochemical properties of amorphous Co3O4 curd

摘要:

以六水合硝酸钴(Co(NO3)2?6H2O)、苯甲酰丙酮（C10H10O2）为原料, 利用微波法合成了前体。前体在500℃空气条件下锻烧得到无定形Co3O4花球。通过 XRD、 SEM、TEM对目标产物进行了表征 , 研究了无定形Co3O4花球的微观结构、表面形貌。电化学测试结果表明，无定形Co3O4花球负极材料 在100mA/g的电流密度下，首次充电比容量达到826mAh/g;循环100圈后，容量保持率为89.2％,具有高的比容量、良好的循环性能和广泛的应用前景。

Abstract:

The precursor was synthesized by microwave method with six cobalt nitrate (Co(NO3)2?(6H2O) and benzoyl acetone (C10H10O2) as raw materials. The precursor is calcined at 500 ℃ in air are obtained under the conditions of amorphous Co3O4 flower.The microstructure and surface morphology of the amorphous Co3O4 flower were studied by XRD、SEM and TEM.The electrochemical test results show that the initial charge specific capacity of the amorphous Co3O4 flower anode material is 816mAh / g at a current density of 100mA / g. After 100 cycles of circulation, the capacity retention rate is 89.2%, with high specific capacity and good cycle performance and a wide range of application prospects.