Synthesis of MnO₂ nanorods from sawdust natural template and their electrochemical capacitive behaviors

详细信息	查看全文 | 推荐本文 |

• 作者：Xiaohong Liu ; Haiping Xu ; Lihua Lu ; Liangyu Gong ; ^{lygong@163.com} ; Wenhong Yao ; Baohan Qu ; ^{hxqbh59@163.com}
• 关键词：Sawdust ; Natural template ; Manganese dioxide ; Nanoparticles ; Electrical properties
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：15 July, 2012
• 卷：79
• 期：Complete
• 页码：39-41
• 文件大小：523 K

摘要

A novel, facile and low-cost sawdust-template-assisted route was presented for the fabrication of MnO₂ nanorods from the in-situ redox reaction between KMnO₄ and methanol for the first time. The resulting samples were characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) tests. The observations revealed the formation of 伪-MnO₂ nanorods with diameters of 30-80 nm and lengths of 200-500 mm. Electrochemical results showed that the MnO₂ nanorods owned the ability to deliver the specific capacitance of 78 F g^鈭?#xA0;1 and good electrochemical stability of ca. 19%capacitance loss after 1000 cycles. Moreover, the fabrication process provided a universal and efficient approach to large-scale production MnO₂ nanorods for supercapacitor application.