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材料导报  2018, Vol. 32 Issue (17): 2907-2911    https://doi.org/10.11896/j.issn.1005-023X.2018.17.002
  材料与可持续发展(一)—— 面向洁净能源的先进材料 |
三维结构聚丙烯酰胺/聚乙烯醇水凝胶的合成及其在超级电容器中的应用
王德玄, 王磊, 于良民
中国海洋大学海洋化学理论与工程技术教育部重点实验室,青岛 266100
Synthesis of Three-dimensional Polyacrylamide/Poly(vinyl alcohol) Hydrogel and Its Application in Supercapacitor
WANG Dexuan, WANG Lei, YU Liangmin
Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, Ocean University of China, Qingdao 266100
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摘要 分别以过硫酸铵(APS)和 N-N二甲基双丙烯酰胺(NMBA)作为引发剂和交联剂引发交联具有三维网络结构的聚丙烯酰胺/聚乙烯醇(PAM-PVA)水凝胶,将该水凝胶浸泡在6 mol/L的KOH溶液中不同时间,制备凝胶聚合物电解质,并组装成双电层超级电容器。采用循环伏安、恒流充放电、交流阻抗等电化学测试技术对组装的超级电容器进行全面的性能研究,采用蓝电监测系统测试组装的超级电容器的稳定性。结果表明,以2.0 g聚乙烯醇和10.0 g丙烯酰胺反应制得的凝胶基体在吸收72 h电解质溶液后组装的超级电容器性能最优,其比电容可达230 F·g-1,5 000次充放电之后其循环保持率仍高达98%。
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王德玄
王磊
于良民
关键词:  准固态超级电容器  聚丙烯酰胺/聚乙烯醇水凝胶  三维网络结构  能量储存    
Abstract: The polyacrylamide/poly(vinyl alcohol) (PAM-PVA) hydrogels with three-dimensional network structure were synthesized, taking ammonium persulfate (APS) and N-N dimethylbisacrylamide (NMBA) as initiators and crosslinkers, respectively. The gel polymer electrolyte was prepared by immersing the obtained hydrogel in 6 mol/L KOH solution for different duration, and the gel polymer electrolyte was adopted to assemble supercapacitor. The electrochemical performance of the assembled supercapacitor was studied by electrochemical techniques including cyclic voltammetry, constant current charge-discharge and AC impedance. The stability of the assembled supercapacitor was evaluated by blue electric monitoring system. The results showed that the supercapacitor with the best performance was prepared via the gel polymer electrolyte obtained from the reaction of 2.0 g PVA with 10.0 g acrylamide and further 72 h electrolyte solution absorption. Its specific capacitance can reach 230 F/g and the capacitance retention rate kept 98% after 5 000 cycles.
Key words:  quasi-solid-state supercapacitors    polyacrylamide/poly (vinyl alcohol) hydrogels    three-dimensional structure    energy storage
               出版日期:  2018-09-10      发布日期:  2018-09-19
ZTFLH:  TQ317.4  
基金资助: 中央高校基本科研业务费专项资金(201562026;201762029)
通讯作者:  于良民: 男,1964年生,教授,博士研究生导师,研究方向为新型导电材料的开发以及在超级电容器中的应用 Tel:0532-66781845 E-mail:yuyan@ouc.edu.cn   
作者简介:  王德玄:男,1989年生,博士研究生,研究方向为导电聚合物的合成以及在超级电容器中的应用 Tel:0532-66782512 E-mail:wangdexuan@stu.ouc.edu.cn
引用本文:    
王德玄, 王磊, 于良民. 三维结构聚丙烯酰胺/聚乙烯醇水凝胶的合成及其在超级电容器中的应用[J]. 材料导报, 2018, 32(17): 2907-2911.
WANG Dexuan, WANG Lei, YU Liangmin. Synthesis of Three-dimensional Polyacrylamide/Poly(vinyl alcohol) Hydrogel and Its Application in Supercapacitor. Materials Reports, 2018, 32(17): 2907-2911.
链接本文:  
http://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2018.17.002  或          http://www.mater-rep.com/CN/Y2018/V32/I17/2907
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