Band-gap shrinked NiO@Co3O4 nanotubes as high-performance supercapacitor electrodes
文献类型：期刊论文
| 作者 | Chen, Feng2; Chi, Yuchen2; Zhang, Haifeng3; Ma, Fei1; Qin, Fengxiang2 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2021-12-25 |
| 卷号 | 888页码:11 |
| ISSN号 | 0925-8388 |
| 关键词 | Nanotube arrays Nanosheets Hybrid nanostructure Synergistic effect Band-gap Supercapacitor |
| DOI | 10.1016/j.jallcom.2021.161463 |
| 通讯作者 | Qin, Fengxiang() |
| 英文摘要 | Novel band-gap shrinked NiO@Co3O4 nanotube arrays on Ni foam have been fabricated via a two-step synthesis route. Hexagonal NiO nanotube arrays are obtained by electrodeposition of Ni nanoparticles onto ZnO nanoprisms followed by selective dissolution of ZnO. The inside and outside surfaces of the NiO nanotubes are homogeneously covered with Co3O4 nanosheets via hydrothermal treatment, which enlarges the surface area and accelerates electron transferring. Benefiting from the hierarchically hollow structure and the synergistic effects, the obtained NiO@Co3O4 nanotube arrays deliver a superior specific capacitance of 1769.2 F/g at 1 A/g and outstanding cycling stability (87.5% capacitance retention after 10,000 cycles at 20 A/g). Density functional theory calculations reveal that the disappearance of the band-gap of the NiO@Co3O4 composite is one intrinsic reason that the conductivity and the capacitive charge storage performance are enhanced significantly. The as-prepared NiO@Co3O4 nanotube arrays are highly promising electrodes for high-performance supercapacitors. (C) 2021 Elsevier B.V. All rights reserved. |
| 资助项目 | Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[51671106] ; Chinese Academy of Sciences[ZDBSLY-JSC023] ; Fundamental Research Funds for the Central Universities[30919011404] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| WOS记录号 | WOS:000705337400003 |
| 资助机构 | Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.imr.ac.cn/handle/321006/166540]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Qin, Fengxiang |
| 作者单位 | 1.Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China 2.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Feng,Chi, Yuchen,Zhang, Haifeng,et al. Band-gap shrinked NiO@Co3O4 nanotubes as high-performance supercapacitor electrodes[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,888:11. |
| APA | Chen, Feng,Chi, Yuchen,Zhang, Haifeng,Ma, Fei,&Qin, Fengxiang.(2021).Band-gap shrinked NiO@Co3O4 nanotubes as high-performance supercapacitor electrodes.JOURNAL OF ALLOYS AND COMPOUNDS,888,11. |
| MLA | Chen, Feng,et al."Band-gap shrinked NiO@Co3O4 nanotubes as high-performance supercapacitor electrodes".JOURNAL OF ALLOYS AND COMPOUNDS 888(2021):11. |
入库方式： OAI收割
来源：金属研究所
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