苯并双咪唑基多孔有机聚合物的制备及性能  

Preparation of Porous Organic Polymer Based on Benzobisimidazole and Its Preformance

作　　者：邢何欢 朱惠 王丽 张怡 夏友付 李涛 XING Hehuan;ZHU Hui;WANG Li;ZHANG Yi;XIA Youfu;LI Tao(School of Chinese Materia Medica,Bozhou University,Bozhou 236800,China)

机构地区：[1]亳州学院中药学院,安徽亳州236800

出　　处：《塑料工业》2023年第1期174-178,共5页China Plastics Industry

基　　金：安徽高校自然科学研究重点项目(KJ2015A393);安徽高校优秀拔尖人才培育资助项目(gxyqzD2021138)。

摘　　要：利用三醛基间苯三酚和1,2,4,5-四胺四盐酸盐构筑了多羟基苯并双咪唑连接的多孔有机聚合物(POP-TT-TT)。通过傅立叶变换红外光谱仪(FTIR)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)以及恒流充放电等对聚合物的结构、形貌和电化学性能进行了表征和测试,进一步对结构影响电化学性能的机理进行了分析。电化学性能测试结果表明,该多孔有机聚合物显示优异的电化学性能,在电流密度为1 A/g时,比电容达到235 F/g。该性能可能归因于形成的多羟基苯并双咪唑结构,易于形成分子内氢键,引起电荷转移,进而提高电化学性能。同时,苯并双咪唑的氧化还原性提高了电化学反应动力学,引起赝电容效应,也有助于电化学性能的提高。Benzobisimidazole-linked porous organic polymer with more hydroxyl group had been constructed by 1,3,5-triformylphloroglucinol and 1,2,4,5-benzenetetramine tetrahydrochloride.Structures, morphology and electrochemical properties of the polymer were characterized and measured by Fourier transform infrared spectroscopy(FTIR),scanning electron microscope(SEM),transmission electron microscopy(TEM)and galvanostatic charge-discharge.The influence mechanism of structure on electrochemical performance was also further investigated.The test shows that the porous organic polymer presents excellent specific capacitance of 235 F/g at the current density of 1 A/g.The electrochemical property could be ascribe to intramolecular hydrogen bonds, resulting in charge transfer.Moreover, the redox-active benzobisimidazole moietie can increase electrochemical reaction kinetics, leading to pseudocapacitive effects.The synergistic effect contributes to enhance electrochemical performance.

关 键 词：多孔有机聚合物 超级电容器 苯并双咪唑 分子内氢键 

分 类 号：O649[理学—物理化学]