Nickel phosphide nanoparticles decorated on polypyrrole nanowires as battery-type electrodes for hybrid supercapacitors
文献类型：期刊论文
| 作者 | Li, ZQ; Yu, RT ; Yue, CM; Tian, T; Guo, ZC; Mu, JB; Zhang, XL; Wang, GS; Zhang, ZX; Che, HW
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| 刊名 | SYNTHETIC METALS
 |
| 出版日期 | 2022 |
| 卷号 | 291 |
| 英文摘要 | Metal phosphides as electrode materials for hybrid supercapacitors (HSCs) still face many challenges, such as insufficient electroactive sites, sluggish reaction kinetics, and low structural stability. To resolve these problems, we here integrate nickel phosphide (NiP) with polypyrrole (PPy) to construct PPy@NiP nanocomposites using a two-step electrochemical approach. Such nanocomposites are composed of amorphous NiP nanoparticles deco-rated on PPy nanowires. They are featured by increased amount of electroactive sites, enhanced electrical conductivity and electrolyte diffusion rate, and improved structural stability compared to the pure NiP particles. As a result, the PPy@NiP nanocomposites as HSC electrodes yield specific capacities of up to 364 mAh g(-1) at 3 A g(-1) and 159 mAh g(-1) at 20 A g(-1) as well as a 91% initial capacity retention over 5000 cycles at 10 A g(-1). Their charge storage performance is superior to that of the pure NiP electrode. Furthermore, the fabricated PPy@NiP-based HSC device demonstrates an energy density of 57.3 Wh kg(-1) at 798 W kg(-1). This strategy for constructing PPy@NiP electrodes may be extended to other metal phosphide-based electrodes with enhanced charge storage performance for HSCs. |
| 源URL | [http://210.75.249.4/handle/363003/61045]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | Li, ZQ,Yu, RT,Yue, CM,et al. Nickel phosphide nanoparticles decorated on polypyrrole nanowires as battery-type electrodes for hybrid supercapacitors[J]. SYNTHETIC METALS,2022,291. |
| APA | Li, ZQ.,Yu, RT.,Yue, CM.,Tian, T.,Guo, ZC.,...&Che, HW.(2022).Nickel phosphide nanoparticles decorated on polypyrrole nanowires as battery-type electrodes for hybrid supercapacitors.SYNTHETIC METALS,291. |
| MLA | Li, ZQ,et al."Nickel phosphide nanoparticles decorated on polypyrrole nanowires as battery-type electrodes for hybrid supercapacitors".SYNTHETIC METALS 291(2022). |
入库方式： OAI收割
来源：西北高原生物研究所
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