超声法制备纳米氧化镍其性能研究

Synthesis and Characterization of NiO Nanospheres with Ultrasonic Method

采用不同方法制备了超级电容器材料NiO纳米球．运用XRD、SEM和TEM对制备的NiO进行了形貌和结构分析．结果表明：在表面活性剂SDBS存在下，超声法制备的NiO为球状结构，粒径为1～3m．在-0．4-0．6V的电位范围内。NiO-US表现出典型的法拉第准电容特性．

NiO nanosphere for supercapacitors was prepared using different methods. The morphology and structure of samples were analyzed by X- ray diffraetion（XRD）, scanning electron microscopy（SEM） and transmission electron microscopy （TEM）. The results showed that the prepared samples with the ultrasound method in the presence of a surfactant （SDBS） were nanosphere and the average diameter of NiO nanospheres is only 1 - 3 nm. Within the potential range of - 0.4--0.6 V, NiO - US showed a typical quasi -Faraday capacitance characteristics.