| 柠檬酸盐为碳前驱体制备介孔炭及其在电化学电容器中的应用(英文) |
| |
| 引用本文： | 周晋,袁勋,邢伟,司维江,禚淑萍. 柠檬酸盐为碳前驱体制备介孔炭及其在电化学电容器中的应用(英文)[J]. 新型炭材料, 2010, 25(5). DOI: 10.1016/S1872-5805(09)60040-8 |
| |
| 作者姓名： | 周晋 袁勋 邢伟 司维江 禚淑萍 |
| |
| 作者单位： | 1. 山东理工大学,化学工程学院,淄博,255049
2. 山东理工大学,分析测试中心,淄博,255049 |
| |
| 基金项目： | Natural Science Foundation of Shandong Province(Y2007B29,Y2008F36)~~ |
| |
| 摘 要： | 热解柠檬酸镁或柠檬酸钡,制备了两种介孔炭(MgC或BaC),并将其用作双电层电容器电极材料。采用氮气吸附、扫描电子显微镜和傅里叶红外光谱对所制介孔炭进行表征。结果表明:所制介孔炭孔结构与柠檬酸盐所含金属阳离子有关。其中,BaC呈典型的双峰孔径分布,最可几孔径分别为3.8nm和15nm;而MgC的孔道主要是小尺寸的介孔或微孔。通过循环伏安、恒流充放电法测试所制介孔炭作为电化学电容器电极材料时的电化学性质。测试表明,在离子液体中MgC和BaC都具有很高的比电容值,分别达到180F.g-1和171F.g-1。其中,BaC的倍率性能良好,能量密度可达到53.3Wh.kg-1,最大功率密度为20kW.kg-1。BaC优良的电容特性主要归因于其孔径双峰分布的孔结构和亲水性表面化学性质。
|
| 关 键 词： | 双电层电容器 柠檬酸盐 双峰孔炭 储能 离子液体 |
Mesoporous carbons derived from citrates for use in electrochemical capacitors |
| |
| ZHOU Jin,YUAN Xun,XING Wei,SI Wei-jiang,ZHUO Shu-ping. Mesoporous carbons derived from citrates for use in electrochemical capacitors[J]. New Carbon Materials, 2010, 25(5). DOI: 10.1016/S1872-5805(09)60040-8 |
| |
| Authors: | ZHOU Jin YUAN Xun XING Wei SI Wei-jiang ZHUO Shu-ping |
| |
| Affiliation: | ZHOU Jin1,YUAN Xun1,XING Wei1,SI Wei-jiang2,ZHUO Shu-ping1(1. School of Chemical Engineering,Shandong University of Technology,Zibo255049,China,2. Analysis & Testing Center of Shandong University of Technology,China) |
| |
| Abstract: | Two mesoporous carbons were prepared by simple pyrolysis of commercial magnesium or barium citrate and tested as electrode materials for electrochemical double-layer capacitors(EDLCs),denoted MgC and BaC,respectively.The as-prepared carbon materials were characterized by N2 adsorption,scanning electron microscopy and Fourier transform infrared spectrometry.Nitrogen adsorption measurements demonstrated that the porosity of the prepared carbons was related to the type of metal cation.BaC possesses a typical b... |
| |
| Keywords: | Electrochemical double-layer capacitors Citrates Bimodal porous carbon Energy storage Ionic liquid |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
