Porous nano-MnO2: large scale synthesis via a facile quick-redox procedure and application in a supercapacitor

Porous nano-MnO2: large scale synthesis via a facile quick-redox procedure and application in a supercapacitor
复制标题

多孔纳米二氧化锰:通过简便的快速氧化还原过程进行大规模合成及其在超级电容器中的应用

DOI:
10.1039/c0nj00712a
复制
发表时间:
2011-02
影响因子:
3.3
通讯作者:
Li, Ya-hao
Li, Ya-hao
中科院分区:
化学3区
文献类型:
--
作者:
Wang, Hong-Qiang;Yang, Gui-fen;Li, Qing-Yu;Zhong, Xin-Xian;Wang, Fang-Ping;Li, Ze-Sheng;Li, Ya-hao

文献摘要

参考文献

被引文献

相似文献

以高锰酸钾和D-葡萄糖为原料,通过快速氧化还原反应,采用声化学法合成了一种新型的超级电容器用多孔纳米二氧化锰。采用X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)和X射线能谱(EDS)对产物的晶体结构、形貌和化学成分进行了表征。结果表明,在20-50 nm范围内,多孔MnO 2纳米粒子由直径约2 nm、长度约4-8 nm的纳米棒组成。根据实验结果,确定了这种纳米结构的一种可能的生长机制。在对称电容器电池中使用1 M Na 2SO 4和9 M KOH水溶液研究了多孔MnO 2的电化学性能。结果表明,在这两种情况下,MnO 2电极具有良好的电容性能。
A new type of porous nano-MnO2 for supercapacitors has been synthesized for the first time by a facile sonochemistry route from a quick-redox reaction between KMnO4 and D-glucose. The crystal structure, morphology and chemical composition of the MnO2 product were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDS). The results show that the porous MnO2 nanoparticles in the range 20–50 nm are interestingly composed of nanorods with diameters of about 2 nm and lengths of 4–8 nm. A possible growth mechanism of this nanostructure has been identified based on the experimental results. The electrochemical properties of the porous MnO2 were investigated in a symmetric capacitor cell using both 1 M Na2SO4 and 9 M KOH aqueous solutions. The results indicate that the MnO2 electrodes have a good capacitive performance in both cases.
DOI: 10.1016/j.jpowsour.2009.11.053
发表时间: 2010-09
影响因子: 9.2
作者:
Inyoung Kim;S. H. Lee;Hyung-Wook Ha;Tae Woo Kim;Yoonsoo Han;Jin-Kyu Kang;Dong-Ha Lee;Seong‐Ju Hwang
通讯作者: Inyoung Kim;S. H. Lee;Hyung-Wook Ha;Tae Woo Kim;Yoonsoo Han;Jin-Kyu Kang;Dong-Ha Lee;Seong‐Ju Hwang
DOI: 10.1016/j.jpowsour.2008.04.005
发表时间: 2008-10
影响因子: 9.2
作者:
Chengjun Xu;Baohua Li;Hongda Du;F. Kang;Yuqun Zeng
通讯作者: Chengjun Xu;Baohua Li;Hongda Du;F. Kang;Yuqun Zeng
DOI: 10.1002/kin.20325
发表时间: 2008-08
影响因子: 1.5
作者:
M. A. Malik;Z. Khan
通讯作者: M. A. Malik;Z. Khan
DOI: 10.1016/j.polymer.2007.12.024
发表时间: 2008-02-18
期刊: POLYMER
影响因子: 4.6
作者:
Pegel, Sven;Poetschke, Petra;Lellinger, Dirk
通讯作者: Lellinger, Dirk
DOI: 10.1002/adma.200390033
发表时间: 2003-01
期刊: Advanced Materials
影响因子: 29.4
作者:
Jun-Jie Zhu;Shu Xu;Hui Wang;Jianmin Zhu;Hong‐Yuan Chen
通讯作者: Jun-Jie Zhu;Shu Xu;Hui Wang;Jianmin Zhu;Hong‐Yuan Chen