用于超级电容器电极的柚子皮/聚苯胺原位复合碳化材料  

Pomelo Peel/Polyaniline In-situ Composite Carbonized Material with an Application to Supercapacitor Electrode

作　　者：杜伟[1] 王小宁 鞠翔宇 孙学勤[1] DU Wei;WANG Xiaoning;JU Xiangyu;SUN Xueqin(School of Environment and Materials Engineering,Yantai University,Yantai 264000)

机构地区：[1]烟台大学环境与材料工程学院,烟台264000

出　　处：《材料导报》2019年第4期719-723,共5页Materials Reports

基　　金：国家自然科学基金(50802081);山东省优秀中青年科学家奖励基金(2006BS04019)~~

摘　　要：超级电容器作为一种新兴储能设备,具有充电速度快、功率密度高、使用寿命长、工作温度范围广且绿色环保等优点,弥补了以锂电池为代表的传统化学电池和其他普通电容器在生产使用方面的不足。本工作以生活废弃物柚子皮为碳源,利用生物质热解炭化技术,在氮气保护下高温碳化柚子皮得到活性炭材料,然后采用最优质量比1∶1原位聚合制备活性炭/聚苯胺纳米复合材料,经高温再碳化获得活性炭材料,并将获得的活性炭材料制成电极,研究其电化学性能。结果表明,活性炭/聚苯胺复合材料经碳化后获得的活性炭材料比电容量可达358 F/g,电极经过2 000次的充放电循环后,电容量仍可保持初始值的95%,具有优良的循环稳定性。Supercapacitors,as an emerging energy storage device,have many advantages like fast charging,high power density,long service life,wide working temperature range,environment friendly,etc.,and surpass the traditional chemical battery such as Li-ion battery and some other ordinary capacitor in terms of manufacture and use.This work aims to prepare a high performance supercapacitor electrode material from pomelo peel,a kind of natural biomass.Firstly,conducted the high-temperature carbonization of pomelo peel under N 2 protection to acquire the activated carbon,and then gained the activated carbon/polyaniline nanocomposite by adopting the optimized mass ratio of 1 ∶1,through an in-situ polymerization.Subsequently this nanocomposite material experienced a high-temperature recarbonization process,and transformed into the desired activated carbon product.Supercapacitor electrode based on the product was fabricated and its electrochemical properties was determined.The results showed that,the activated carbon material acquired by recarbonizing the pomelo peel carbon/polyaniline composite exhibits a specific capacitance of 358 F/g,and a capacitance retention of 95% after 2 000 charge-discharge cycles,indicating a satisfactory cycle stability.

关 键 词：柚子皮 聚苯胺 生物质碳化 超级电容器 

分 类 号：TM912.9[电气工程—电力电子与电力传动]