高电容电极材料MnO-Co纳米晶修饰多孔生物碳的简易合成  

Facile Synthesis of Porous Biocarbon Decorated with MnO-Co Nanocrystals for High-Capacitance Electrodes

作　　者：徐杨 刘高尚 刘成宝[1,2,3] 郑磊之 陈丰[1,2,3] 钱君超[1,2,3] 邱永斌 孟宪荣[5] 陈志刚[1,2,3] Xu Yang;Liu Gaoshang;Liu Chengbao;Zheng Leizhi;Chen Feng;Qian Junchao;Qiu Yongbin;Meng Xianrong;Chen Zhigang(Jiangsu Key Laboratory for Environment Functional Materials,Suzhou University of Science and Technology,Suzhou 215009,China;School of Materials Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China;Jiangsu Collaborative Innovation Center of Technology and Material for Water Treatment,Suzhou University of Science and Technology,Suzhou 215009,China;Jiangsu Province Ceramics Research Institute Co.,Ltd,Yixing 214221,China;Suzhou Institute of Environmental Science,Suzhou 215007,China)

机构地区：[1]苏州科技大学江苏省环境功能材料重点实验室,江苏苏州215009 [2]苏州科技大学材料科学与工程学院,江苏苏州215009 [3]苏州科技大学江苏水处理技术与材料协同创新中心,江苏苏州215009 [4]江苏省陶瓷研究所有限公司,江苏宜兴214221 [5]苏州市环境科学研究所,江苏苏州215007

出　　处：《稀有金属材料与工程》2024年第7期1855-1862,共8页Rare Metal Materials and Engineering

基　　金：Natural Science Foundation of Jiangsu Province(BK20180103,BK20180971);Science and Technology Development Project of Suzhou(SS202036)。

摘　　要：随着化石燃料的迅速枯竭和一系列环境问题的出现,开发和利用新型电化学储能装置已迫在眉睫,而电极材料的设计、制备和优化是决定超级电容器性能的关键因素。采用水热法将蜀葵秸秆转化为多孔碳基质,并在其上锚定了MnO和Co纳米晶。结果表明,制备的生物碳具有多孔结构和良好的电子传输特性,而其上的纳米晶MnO-Co则具有高电容。由于独特的纳米碳骨架结构和较大的比表面积(345.9 m^(2)·g^(-1)),MnO-Co纳米晶/多孔碳显示出优异的电化学电容(1 A·g^(-1)时为146 F·g^(-1))和循环稳定性,循环1000次后,比容量仍保持在99.4%。With the rapid depletion of fossil fuels and a series of environmental problems,it is urgent to develop and to utilize new electrochemical energy storage devices,and the design,preparation and optimization of electrode materials are key factors to determine the performance of supercapacitors.Hydrothermal method was used to convert hollyhock stalks into porous carbon matrix with MnO and Co nanocrystals anchored on it.Results show that the prepared biocarbon has porous structure and good electron transport properties,and the nanosrystal MnO-Co on it has high capacitance.Due to the unique nanostructure of carbon skeleton and large specific surface area(345.9 m^(2)·g^(-1)),MnO-Co nanocrystal/porous carbon shows excellent electrochemical capacitance(146 F·g^(-1)at 1 A·g^(-1))and cycle stability.After 1000 cycles,the specific capacity still remains 99.4%.

关 键 词：MnO-Co纳米晶体 能量储存 电极材料 多孔生物碳 

分 类 号：TQ127.11[化学工程—无机化工] TM53[电气工程—电器]