| 柚子皮衍生的分级多孔碳作为高性能超级电容器的电极材料 |
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| 引用本文： | 武中钰,范蕾,陶友荣,王伟,吴兴才,赵健伟.柚子皮衍生的分级多孔碳作为高性能超级电容器的电极材料[J].无机化学学报,2018,34(7):1249-1260. |
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| 作者姓名： | 武中钰 范蕾 陶友荣 王伟 吴兴才 赵健伟 |
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| 作者单位： | 南京大学化学化工学院介观化学教育部重点实验室南京大学配位化学国家重点实验室;嘉兴学院材料与纺织工程学院 |
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| 基金项目： | 国家自然科学基金（No.21673108）资助项目。 |
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| 摘 要： | 使用CTAB作为软模板,水热处理柚子皮,再以碳化和KOH活化过程得到了分级多孔碳(HPC),这种分级多孔碳材料的比表面积高达1 813 m~2·g~(-1),相比于没有水热步骤制备的多孔碳(PC),拥有更加丰富的介孔结构和更大的比表面积。XPS分析结果表明HPC的氧掺杂量更高,会比PC贡献更大的赝电容。三电极测试体系中,HPC的比电容达到285 F·g~(-1)(0.5 A·g~(-1),1 mol·L~(-1)KOH)。同时,组装的两电极对称超级电容器拥有很好的倍率性能,循环12 000次充放电后,比电容依旧保留99%。HPC拥有这样优异的性能归结于较大的比表面积,高氧掺杂量和合理的孔径分布的协同作用。
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| 关 键 词： | 超级电容器 生物炭 多孔碳 软模板法 能源存储 |
| 收稿时间： | 2018/3/12 0:00:00 |
| 修稿时间： | 2018/4/16 0:00:00 |
Pomelo Peel Derived Hierarchical Porous Carbon as Electrode Materials for High-Performance Supercapacitor |
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| WU Zhong-Yu,FAN Lei,TAO You-Rong,WANG Wei,WU Xing-Cai and ZHAO Jian-Wei.Pomelo Peel Derived Hierarchical Porous Carbon as Electrode Materials for High-Performance Supercapacitor[J].Chinese Journal of Inorganic Chemistry,2018,34(7):1249-1260. |
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| Authors: | WU Zhong-Yu FAN Lei TAO You-Rong WANG Wei WU Xing-Cai and ZHAO Jian-Wei |
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| Institution: | Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China,Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China,Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China,Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China,Key Laboratory of Mesoscopic Chemistry of MOE, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China and School of Materials and Textile Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China |
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| Abstract: | We propose a novel method using cetyltrimethyl ammonium bromide (CTAB) as soft template followed by successive graphitization and activation of pomelo peel to get a new biomass-derived hierarchical porous carbon (HPC). The as-obtained HPC possesses a high specific area of 1 813 m2·g-1 with abundant mesopores structure, which is larger than that of 1 184 m2·g-1 for the contrast of the porous carbon (PC) prepared without CTAB. X-ray photoelectron spectroscopy (XPS) analysis presents the oxygen doped amount for HPC is larger than that for PC, which could arise a high pseudocapacitance. In addition, the HPC also shows better electrochemical performance than PC, when utilized as an electrode material in supercapacitor. At a current density of 0.5 A·g-1, the specific capacitance of HPC is up to 285 F·g-1 in 1 mol·L-1 KOH solution. Further investigation based on two-electrode cell suggests good performance with high rate capability and relative stability. Such excellent performance should be attributed to the synergistic effect of large specific surface area, high O-doping content and reasonable pore-size distribution. |
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| Keywords: | supercapacitor biomass porous carbon soft template energy storage |
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