One-step phosphating synthesis of CoP nanosheet arrays combined with Ni2P as a high-performance electrode for supercapacitors
| العنوان: | One-step phosphating synthesis of CoP nanosheet arrays combined with Ni2P as a high-performance electrode for supercapacitors |
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| المؤلفون: | Tie Shu, Fuxiang Wei, Qian Li, Yaojian Ren, Jiqiu Qi, He Gao, Yanwei Sui, Zhi Sun |
| المصدر: | Nanoscale. 12:20710-20718 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Supercapacitor, Materials science, Graphene, Phosphide, chemistry.chemical_element, Chemical vapor deposition, Current collector, law.invention, chemistry.chemical_compound, Nickel, chemistry, Chemical engineering, law, Electrode, General Materials Science, Nanosheet |
| الوصف: | A transition metal phosphide is an excellent candidate for supercapacitors due to its superior electrical conductivity and high theoretical capacity. In addition, compared with traditional 3D nano-materials, 2D nanosheets possess a greater specific surface area and shorter electron transport distance. In this study, a reasonable approach is proposed for the synthesis of ZIF-67 nanosheets on nickel foam with subsequent phosphorization by chemical vapor deposition (CVD) to obtain flake-like CoP combined with Ni2P (NCP/NF), in which nickel foam serves as the current collector as well as the resource of Ni to form Ni2P. Benefiting from the nanosheet array of CoP, the NCP/NF can improve the capacity of Ni2P from 0.57 C cm−2 to 1.43 C cm−2 at 1 mA cm−2. Furthermore, the NPC/NF/reduced graphene oxide (RGO) asymmetric supercapacitor (ASC) shows an energy density of 26.9 μW h cm−2 at a power density of 0.896 mW cm−2, and excellent cycling performance with a capacity retention of 93.75% after 5000 cycles at 10 mA cm−2. |
| تدمد: | 2040-3372 2040-3364 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::dde49683b8b9142f397ba93a464ee809 https://doi.org/10.1039/d0nr05406b |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........dde49683b8b9142f397ba93a464ee809 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20403372 20403364 |
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