硅酸盐学报

纳米NiCo2O4的制备及其电化学性能

作者：吴双刘庆闫庆龙姜奉华王介强

分类号：TM911

出版年,卷(期):页码：2017,45(4):504-509

DOI：10.14062/j.issn.0454-5648.2017.04.07

摘要：

分别以氯化物和硫酸盐为母盐，尿素为沉淀剂，采用微波均相沉淀法制备了不同形貌尖晶石结构的NiCo2O4纳米粉体。结果表明：母盐种类对NiCo2O4纳米粉体形貌及其电化学性能有显著的影响。以氯化物为母盐制得的NiCo2O4，其形貌为由针状纳米级单体聚集而成的刺球状颗粒；当扫描速率为10 mV/s时，其比电容为150.7 F/g；扫描速率为50 mV/s时，比电容为107.3 39.7 F/g。以硫酸盐为母盐制得的NiCo2O4，其形貌为由片状纳米级单体聚集而成的花球状颗粒；当扫描速率为 10 mV/s时，其比电容为52.5 F/g；扫描速率为50 mV/s时，比电容为39.7 F/g。

NiCo2O4 nanoparticles with different morphologies were prepared via microwave homogeneous precipitation using chloride and sulfate of nickel and cobalt as raw materials and urea as a precipitant. The results show that the resultant NiCo2O4 particles present a spinal structure after the calcination of the precursors synthesized with different mother salts. The resultant particles prepared with chloride show a thorn-ball shape assembled from needle-like nano-monomer, and exhibit specific capacitances of 150.7 F/g at scanning rate of 10 mV/s, and 107.3 F/g at scanning rate of 50 mV/s, respectively. The particles prepared with sulfate show a ball-flower shape assembled from nano-flake, and exhibit specific capacitances of 52.5 F/g at a scanning rate of 10 mV/s, and 39.7 F/g at a scanning rate of 50 mV/s, respectively.

基金项目：

山东省自然科学基金项目(ZR2012EMM005)

作者简介：

吴双(1992—)，女，硕士研究生。

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