| Mn4+掺杂Co3O4纳米纤维的静电纺丝法制备及其电化学性能 |
| |
| 引用本文： | 朱亚波,唐晓彤,段连威,刘万英,曹星星,冯培忠.Mn4+掺杂Co3O4纳米纤维的静电纺丝法制备及其电化学性能[J].无机化学学报,2013,29(18). |
| |
| 作者姓名： | 朱亚波 唐晓彤 段连威 刘万英 曹星星 冯培忠 |
| |
| 作者单位： | 中国矿业大学, 材料科学与工程学院, 徐州 221116,中国矿业大学, 材料科学与工程学院, 徐州 221116,中国矿业大学, 材料科学与工程学院, 徐州 221116,中国矿业大学, 材料科学与工程学院, 徐州 221116,中国矿业大学, 材料科学与工程学院, 徐州 221116,中国矿业大学, 材料科学与工程学院, 徐州 221116 |
| |
| 基金项目： | 中国矿业大学学科前沿专项项目（No.2015XKQK02）和国家自然科学基金中瑞国际合作交流项目（No.51611130064）资助。 |
| |
| 摘 要： | 通过静电纺丝法制备Mn4+掺杂的Co3O4复合纳米纤维，利用XRD、XPS、BET、SEM和电化学工作站等对材料的结构、成分、形貌和电化学性能进行表征与测试。研究发现，通过Mn4+掺杂，Co3O4复合纳米纤维的电化学性能得到明显改善。当nCo∶nMn=20∶2时，相应的复合纤维具有较大比表面积68 m2·g-1，而且该样品呈现出清晰的氧化还原峰，在1 A·g-1的电流密度下，放电比电容量为585 F·g-1，这比纯Co3O4纳米纤维的416 F·g-1，有显著提高；循环500圈电容保持率达到82.6%，而纯Co3O4纳米纤维则是76.4%。
|
| 关 键 词： | 静电纺丝法 Mn4+掺杂Co3O4纳米纤维 表征 电化学性能 |
| 收稿时间： | 2017/7/27 0:00:00 |
| 修稿时间： | 2017/11/3 0:00:00 |
Mn4+ Doped Co3O4 Nanofibers:Preparation by Electro-Spinning and Electrochemical Performance |
| |
| ZHU Ya-Bo,TANG Xiao-Tong,DUAN Lian-Wei,LIU Wan-Ying,CAO Xing-Xing and FENG Pei-Zhong.Mn4+ Doped Co3O4 Nanofibers:Preparation by Electro-Spinning and Electrochemical Performance[J].Chinese Journal of Inorganic Chemistry,2013,29(18). |
| |
| Authors: | ZHU Ya-Bo TANG Xiao-Tong DUAN Lian-Wei LIU Wan-Ying CAO Xing-Xing and FENG Pei-Zhong |
| |
| Institution: | School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China,School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China,School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China,School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China,School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China and School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China |
| |
| Abstract: | Mn4+ doped Co3O4 nanofibers with nCo:nMn=20:2 have large surface with 68 m2·g-1. Under the current density of 1 A·g-1, the 20:2 sample has a maximum capacitance of 585 F·g-1, which is obviously higher than that of pure cobalt oxide nanofiber ~416 F·g-1. After 500 cycles of charging and discharging, the specific capacitance of 20:2 sample is maintained about 82.6%, but that of the pure cobalt oxide nanofiber is only 76.4%. The mechanism of performance improvement of the composite fibers was analyzed concretely. |
| |
| Keywords: | electro-spinning method Mn4+ doped Co3O4 nanofibers characterization electro-chemical property |
|
| 点击此处可从《无机化学学报》浏览原始摘要信息 |
| 点击此处可从《无机化学学报》下载免费的PDF全文 |
|
