A New Porous Polymer for Highly Efficient Capacitive Energy Storage
A New Porous Polymer for Highly Efficient Capacitive Energy Storage
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DOI：
10.1021/acssuschemeng.7b02234
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发表时间：
2018-01-01
影响因子：
8.4
通讯作者：
Bhaumik, Asim
中科院分区：
文献类型：
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作者：
Bhanja, Piyali;Das, Sabuj K.;Bhaumik, Asim
通过溶剂热Schiff碱缩合反应合成了新型多孔聚合物TPDA-1，2，4，6-三羟基苯甲醛和1，3，5-三（4-氨基苯基）三嗪。TPDA-1材料在2 mV s（-1）扫描速率下显示出非常高的比电容469.4 F g（-1），以及545 m2 g（-1）的高比表面积。它还表现出优异的循环稳定性，在5A g（-1）下1000次循环后其初始比电容保持95%，表明其作为高性能超级电容器的潜力。贯穿整个聚合物基质的微孔内的扩展的π-共辄和离子传导以及高BET表面积可能是能量存储装置中的这种高超级电容器性能的原因。TPDA-1已通过各种电化学技术，如循环伏安法，电流充放电和电化学阻抗谱进行了彻底的表征。我们的实验结果表明，这种多孔聚合物在未来一代的能量存储设备的高潜力。
The new porous polymer TPDA-1 has been synthesized via solvothermal Schiff base condensation reaction between two organic monomers, i.e., 2,4,6-trihydroxyisophthalaldehyde and 1,3,5-tris(4-aminophenyl)triazine. The TPDA-1 material showed a very high specific capacitance of 469.4 F g(-1), at 2 mV s(-1) scan rate, together with a high specific surface area of 545 m(2) g(-1). It also exhibited excellent cyclic stability with 95% retention of its initial specific capacitance after 1000 cycles at 5 A g(-1), suggesting its potential as a high performance supercapacitor. Extended pi-conjugation and ion conduction inside the micropores throughout the whole polymeric matrix and high BET surface area could be responsible for this high supercapacitor performance in energy storage device. TPDA-1 has been characterized thoroughly by various electrochemical techniques such as cyclic voltammetry, galvanic charge-discharge, and electrochemical impedance spectroscopy. Our experimental results suggested a high potential of this porous polymer in energy storage devices for future generation.