纳米纤维素/组氨酸功能化石墨烯复合材料在超级电容器中的应用  

Application of nanocellulose/histidine-functionalized graphene composites in supercapacitors

作　　者：陈家君 刘凯歌 于甜甜 郑刚 李林洁 樊姗[1,2] 张永 Chen Jiajun;Liu Kaige;Yu Tiantian;Zheng Gang;Li Linjie;Fan Shan;Zhang Yong(College of Materials Science and Engineering,Qiqihar University,Qiqihar 161006;Key Laboratory of Polymer-Based Composites of Heilongjiang Province,Qiqihar 161006)

机构地区：[1]齐齐哈尔大学材料科学与工程学院,齐齐哈尔161006 [2]黑龙江省聚合物基复合材料重点实验室,齐齐哈尔161006

出　　处：《化工新型材料》2025年第1期38-42,共5页New Chemical Materials

基　　金：国家自然科学基金(52072191);黑龙江省自然科学基金联合引导项目(LH2020E126)。

摘　　要：使用高浓度的氧化石墨烯溶液(GO)为碳源,纳米纤维素(NC)作为物理间隔物,组氨酸作为氮掺杂剂和间隔剂,通过一步水热法制备了纳米纤维素/组氨酸功能化石墨烯水凝胶(NCGHiss)复合材料。因其具有丰富的杂原子官能团(N,O)和良好的孔径结构,NCGHiss在对称型超级电容器中展现了优异的电化学性能。基于NCGHis10的超级电容器在0.3A/g电流密度下质量比电容达到232.39F/g,在10A/g时其比容量保持率高达76.36%。此外,组装的器件在10000次充放电循环后电容保持率高达100.35%。Nanocellulose/histidine functionalized graphene hydrogels(NCGHiss)composites were successfully prepared by one-step hydrothermal method using a high concentration of graphene oxide solution(GO)as carbon source,nanocellulose(NC)as a physical spacer and histidine as a nitrogen dopant and spacer.NCGHiss exhibited excellent electrochemical performance in symmetric supercapacitors due to its abundant heteroatom functional groups(N,O)and good pore structure.The NCGHis10-based supercapacitor had a gravimetric specific capacitance of 232.39F/g at a current density of 0.3A/g,and its specific capacity retention rate was as high as 76.36%at 10A/g.In addition,the assembled device had a capacitance retention rate of 100.35%after 10000 charge-discharge cycles.

关 键 词：组氨酸 纳米纤维素 石墨烯 超级电容器 水凝胶 

分 类 号：TQ152[化学工程—电化学工业] TM53[电气工程—电器]