利用简单液相共沉淀法制得中间产物Ni（OH）2-Co（OH）2,再经煅烧得到Co3O4-NiO复合粒子;用乙二胺对Co3O4-NiO复合粒子进行改性,改性后Co3O4-NiO微粒分散性提高,形貌为片状,片与片之间相互交叉形成疏松的介孔结构。电化学测试表明Co3O4-NiO电极材料在改性后表现出优良的电化学性能,在电位窗口为0～0.4V时,单电极比电容可达1202F/g,相比改性前提高了171F/g。
Ni（OH）2-Co（OH）2 was obtained by an easy simple liquid coprecipitation method.After calcination,the Co3O4-NiO composite particles were gotten,then modified by ethylenediamine.And the dispersion of Co3O4-NiO particles improved,morphology was flake,it formed loose mesoporous structure among each particles.Meanwhile,electrochemical supercapacitors properties of Co3O4-NiO electrode material were tested.The consequence manifested that the Co3O4-NiO composite particles showed excellent electrochemical performance and its single electrode specific capacitance was up to 1202F/g at the potential window of 0-0.4V,which increased 171F/g compared with the unmodified.
参考文献
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