Morphology-controlled syntheses of alpha-MnO2 for electrochemical energy storage
文献类型：期刊论文
| 作者 | He, Weidong2; Yang, Wenjin1; Wang, Chenggang2; Deng, Xiaolong2; Liu, Baodan1; Xu, Xijin2 |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2016-06-14 |
| 卷号 | 18期号:22页码:15235-15243 |
| ISSN号 | 1463-9076 |
| DOI | 10.1039/c6cp02548j |
| 通讯作者 | Liu, Baodan(baodanliu@imr.ac.cn) ; Xu, Xijin(sps_xuxj@ujn.edu.cn) |
| 英文摘要 | Manganese dioxide (MnO2) nanoarchitectures including microspheres assembled by nanosheets and hollow urchins assembled by nanorods have been successfully synthesized using a facile and efficient hydrothermal method at 150 degrees C. The effects of concentrations of the reactants and reaction time on the structures and morphologies of MnO2 were systematically investigated. The experimental results showed that the morphologies of MnO2 transformed into nanosheet-assembled microspheres (10 min) from nanorod-assembled hollow urchins (5 min) by tuning the suitable reaction time. The nanorodassembled hollow urchins experienced the morphology transformation cycle from urchin to a disordered structure to urchin with the extension of the reaction time. Furthermore, the nanorods with different diameters and lengths were formed with different concentrations of reactants at the same reaction time (8 h). The MnO2 nanorods fabricated with 0.59 g KMnO4 showed a maximum specific capacitance (198 F g(-1)) with a good rate capability and excellent cycling stability (maintained 94% after 2000 cycles). Furthermore, the nanosheet-assembled microspheres exhibited the higher specific capacitance of 131 F g(-1) at 1 A g(-1) with a long-term cycling stability for the samples at different reaction times. These results indicated their promising applications as high-performance supercapacitor electrodes and provided a generic guideline in developing different nanostructured electrode materials for electrochemical energy storage. |
| 资助项目 | Taishan Scholar[TSHW20120210] ; National Natural Science Foundation of China[11304120] ; National Natural Science Foundation of China[21505050] ; Encouragement Foundation for Excellent Middle-aged and Young Scientist of Shandong Province[BS2014CL012] |
| WOS研究方向 | Chemistry ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000378273500055 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | Taishan Scholar ; National Natural Science Foundation of China ; Encouragement Foundation for Excellent Middle-aged and Young Scientist of Shandong Province |
| 源URL | [http://ir.imr.ac.cn/handle/321006/122392]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Baodan; Xu, Xijin |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Jinan, Sch Phys & Technol, 336 West Rd Nan Xinzhuang, Jinan 250022, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Weidong,Yang, Wenjin,Wang, Chenggang,et al. Morphology-controlled syntheses of alpha-MnO2 for electrochemical energy storage[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2016,18(22):15235-15243. |
| APA | He, Weidong,Yang, Wenjin,Wang, Chenggang,Deng, Xiaolong,Liu, Baodan,&Xu, Xijin.(2016).Morphology-controlled syntheses of alpha-MnO2 for electrochemical energy storage.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,18(22),15235-15243. |
| MLA | He, Weidong,et al."Morphology-controlled syntheses of alpha-MnO2 for electrochemical energy storage".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 18.22(2016):15235-15243. |
入库方式： OAI收割
来源：金属研究所
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