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
中科院分区:
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
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.
登录
查看更多内容
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
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
影响因子:
1.5
作者:
M. A. Malik;Z. Khan
通讯作者:
M. A. Malik;Z. Khan
影响因子:
4.6
作者:
Pegel, Sven;Poetschke, Petra;Lellinger, Dirk
通讯作者:
Lellinger, Dirk
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