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超级电容器作为一种新型的储能器件，其性能一直由电极材料所决定。采用简单的水热法制备了普鲁士蓝(PB)方块纳米材料，并通过原位氧化聚合法成功包覆聚吡咯(PPy),得到PB@PPy纳米复合材料。在1 mol/L的KOH电解液中对其进行电化学测试，表现出优秀的电化学性能：当电流密度为0.5 A·g-1时，PB@PPy纳米复合材料的比电容为706 F·g-1,在5 A·g-1的电流密度下经过3 000次的充放电循环测试后，比电容保持率为70.48%。所合成的PB@PPy纳米复合材料在超级电容器中有较大的应用潜力。
Abstract：As a new type of energy storage device, the performance of the supercapacitor has always been determined by the electrode material. Prussian blue(PB) square nanomaterials were prepared by a simple hydrothermal method, and polypyrrole(PPy) was successfully coated by in-situ oxidative polymerization to obtain PB@PPy nanocomposites. It was electrochemically tested in 1 mol/L KOH electrolyte. The results show excellent electrochemical performances: the specific capacitance of PB@PPy nanocomposites is 706 F·g-1 at a current density of 0.5 A·g-1, and the specific capacitance retention rate is 70.48% after 3 000 charge-discharge cycles at a current density of 5 A·g-1. The synthesized PB@PPy nanocomposites have great applications potential for supercapacitor.
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基本信息:
DOI：10.13250/j.cnki.wndz.2022.09.006
中图分类号:TM53;TB332
引用信息:
[1]赵匡健,卞梓垚,李宽等.聚吡咯包覆的普鲁士蓝电极材料制备及其电化学性能[J].微纳电子技术,2022,59(09):869-874+890.DOI:10.13250/j.cnki.wndz.2022.09.006.
基金信息:
国家自然科学基金资助项目(51672172,51872186,51971128,52171185); 上海市优秀学术/技术带头人计划项目(20XD1401800); 上海市科委项目(19020501000); 微机电系统浙江省工程研究中心开放课题基金资助项目(MEMSZJERC2205); 校企合作横向项目(H2021-271)