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Ni foam supported NiO nanosheets as high-performance free-standing electrodes for hybrid supercapacitors and Ni–Zn batteries
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, Qiang Li, Jiantao Liao, Cong Hu, Guangwu Fu, Yulu Asare, Owusu Kwadwo Liu, Ziang Zhou, Liang Mai, Liqiang |
| Copyright Year | 2018 |
| Abstract | Herein, Ni foam (NF) supported NiO nanosheets with a NF@NiO core@shell structure have been synthesized by a facile etching-reoxidation method. The obtained NF@NiO can function as high-performance free-standing electrodes for both hybrid supercapacitors and Ni–Zn batteries. When employed as the cathode for hybrid supercapacitors, the NF@NiO exhibits a high areal capacitance of 2.01 F cm−2 at 8 mA cm−2. By coupling with an FeOOH anode, the assembled NF@NiO//FeOOH asymmetric supercapacitor delivers a peak energy density of 2.15 mW h cm−3 and a peak power density of 2.75 W cm−3. A rechargeable Ni–Zn battery is also assembled using NF@NiO as the cathode. The NF@NiO//Zn battery demonstrates a high maximum energy density (25.6 μW h cm−2) and an impressive power density (86.48 mW cm−2) with remarkable cycling durability (84.7% capacity retention for 10 000 cycles). These features make the free-standing NF@NiO a promising candidate for electrochemical energy storage. |
| Starting Page | 19488 |
| Ending Page | 19494 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/c8ta07574c |
| Volume Number | 6 |
| Alternate Webpage(s) | http://mai.group.whut.edu.cn/pub/2018/201812/P020181210593581590060.pdf |
| Alternate Webpage(s) | http://mai.group.whut.edu.cn/pub/2018/201812/P020181210593581754181.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/c8ta07574c |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
