Facile synthesis of large-area manganese oxide nanorod arrays as a high-performance electrochemical supercapacitor
Facile synthesis of large-area manganese oxide nanorod arrays as a high-performance electrochemical supercapacitor
复制标题
轻松合成大面积氧化锰纳米棒阵列作为高性能电化学超级电容器
DOI：
10.1039/c1ee01338f
复制
发表时间：
2011-08-01
影响因子：
32.5
通讯作者：
Tong, Yexiang
中科院分区：
文献类型：
--
作者：
Lu, Xihong;Zheng, Dezhou;Tong, Yexiang
采用简单的电化学方法，在掺F的SnO 2镀膜玻璃（FTO）上成功制备了大面积的氧化锰纳米棒阵列（MONRAs）和人字形结构（MOHBs）。循环伏安法（CV）和恒电流充放电测试表明，MONRA和MOHB在0.5M Na 2SO 4水溶液中表现出优异的比电容和良好的循环稳定性。例如，MONRA的比电容在扫描速率为10 mV s-1时高达660.7 F g-1，在电流密度为3 A g-1时高达485.2 F g-1。此外，所提出的方法可以扩展到允许具有583.6 F g-1的比电容的类似MONR在柔性Ti箔上生长，这可能在制造柔性超级电容器中具有巨大的潜在应用。
Large-area manganese oxide nanorod arrays (MONRAs) and herringbones (MOHBs) were successfully synthesized on F-doped SnO2 coated glass (FTO) substrates by a simple electrochemical method. Cyclic voltammetry (CV) and galvanostatic charge/discharge measurements demonstrated that the MONRAs and MOHBs exhibited excellent specific capacitance and good cycling stability in 0.5 M Na2SO4 aqueous solution. For example, the specific capacitance of the MONRAs achieves as high as 660.7 F g−1 at a scan rate of 10 mV s−1 and 485.2 F g−1 at a current density of 3 A g−1, respectively. Furthermore, the presented method may be extended to allow similar MONRs with a specific capacitance of 583.6 F g−1 to grow on flexible Ti foil, which may have great potential application in fabricating flexible supercapacitors.