副教授
硕士生导师
教师拼音名称:zhangzhonghua
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所在单位:新能源材料与器件教研室
学历:博士研究生
办公地点:材料学院楼215A
性别:男
联系方式:15092410550
学位:工学博士
职称:副教授
毕业院校:中国科学院大学
学科:材料科学与工程其他专业
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2023-09-15 2023 年度山东省优秀研究生导师
2022-12-30 2022年山东省优秀硕士学位论文指导教师
2022-03-01 2021年度校级先进工作者
2020-06-01 2019年度校级先进工作者
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关键字:Nitrogen functional groups; Oxygen functional groups; Porous carbon frameworks; Polyaniline; Supercapacitors
摘要:Nitrogen- and oxygen-containing hierarchical porous carbon frameworks have been successfully synthesized by carbonization and simultaneous activation of polyaniline with KOH as activating agent. The obtained porous carbon frameworks with hierarchical pore structures show high specific surface area (2280.0 m(2) g(-1)), large total pore volume (1.75 cm(3) g(-1)), and abundant nitrogen (5.7 at.%) and oxygen (14.4 at.%) functional groups. As expected, the porous carbon frameworks synthesized with a KOH/polyaniline weight ratio of 4:1 exhibit improved capacitance properties, such as an enlarged specific capacity (428.1 Fg(-1) at 0.5 Ag-1), excellent rate capability (299.7 Fg(-1) at 50 Ag-1), and excellent cycling stability. The specific power density and energy density can reach 14275 W kg(-1), and 18.6 Wh kg(-1), respectively. This method is facile, low cost, and effective for the production of nitrogen- and oxygen-containing carbon materials with high specific surface area, which can be applied in high-performance supercapacitors. (C) 2014 Elsevier Ltd. All rights reserved.
卷号:134
期号:
是否译文:否