纤维素衍生多孔碳的制备及电容性能  

Preparation and capacitance performanceof cellulose-derived porous carbon

作　　者：潘昊鑫 张永[1] 张新雨 蒋立君 严宇琪 韩洋 樊鹏阳 PAN Haoxin;ZHANG Yong;ZHANG Xinyu;JIANG Lijun;YAN Yuqi;HAN Yang;FAN Pengyang(School of Materials Science and Engineering,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006

出　　处：《高师理科学刊》2023年第5期54-58,共5页Journal of Science of Teachers＇College and University

基　　金：黑龙江省省属本科高校基本科研业务费青年项目(135509204)。

摘　　要：以废弃玉米秸秆提取的纤维素为原料,采用热解法和活化法相结合制备得到生物质多孔碳材料.采用X射线晶体衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)等表征手段对其组成和结构进行表征.组成的对称型超级电容器电化学性能测试结果表明,制得的多孔碳材料电极具有较高的比电容和优异的循环稳定性.在电流密度为0.3 A·g^(-1)时,比电容量为210.74 F·g^(-1);当电流密度增加到10 A·g^(-1)时,其比电容量也可达到175.89 F·g^(-1),电容器仍显示出82.69%的电容保留率.提供了一种环境安全和简单易得的方法制备性能优异的生物质碳电极材料.The biomass porous carbon material was prepared from cellulose extracted from waste corn straw by pyrolysis and activation.X-ray crystal diffractometer(XRD),scanning electron microscope(SEM)and transmission electron microscope(TEM)were used to characterize its composition and structure.The electrochemical performance test results of the symmetrical supercapacitor show that the porous carbon electrode has higher specific capacitance and excellent cyclic stability.When the current density is 0.3 A·g^(-1),the specific capacitance is 210.74 F·g^(-1).When the current density increases to 10 A·g^(-1),the specific capacitance can also reach 175.89 F·g^(-1),the capacitor still shows a capacitance retention rate of 82.69%.Provides an environmentally safe,simple and readily available method to prepare biochar electrode materials with excellent properties.

关 键 词：超级电容器 生物质 多孔碳 纤维素 

分 类 号：O613.71[理学—无机化学] TM53[理学—化学]