| Mn4+掺杂Co3O4纳米纤维的静电纺丝法制备及其电化学性能 | |
| Mn4+ Doped Co3O4 Nanofibers: Preparation by Electro-Spinning and Electrochemical Performance | |
| 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 | |
| 基金项目: 中国矿业大学学科前沿专项项目（No.2015XKQY02）和国家自然科学基金中瑞国际合作交流项目（No.51611130064）资助。 | |
| 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 | |
| 投稿时间：2017-07-27 修订日期：2017-11-03 | |
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| 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,2018,34(2):317-324. | |
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