Efficient strategy for hollow carbon nanospheres embedded with nickel hydroxide nanocrystals and their excellent lithium-ion storage performances
| Autor: | Jeong Hoo Hong, Yun Chan Kang, Su Hyun Yang, Jae Hun Choi, Gi Dae Park |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Metal hydroxide chemistry.chemical_element 02 engineering and technology 01 natural sciences Metal chemistry.chemical_compound 0103 physical sciences General Materials Science 010302 applied physics Precipitation (chemistry) Mechanical Engineering Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics Nickel chemistry Chemical engineering Mechanics of Materials visual_art visual_art.visual_art_medium Hydroxide Lithium 0210 nano-technology Mesoporous material Carbon |
| Zdroj: | Scripta Materialia. 188:112-117 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2020.07.032 |
| Popis: | In this study, an efficient supporting matrix for metal hydroxide, carbon hollow nanospheres are firstly applied for the synthesis of anode materials for lithium-ion batteries. Metal salt is infiltrated within the mesopores of carbon nanospheres, and then transforms into ultrafine metal hydroxide by in-situ precipitation. Immediate conversion reaction occurs between the ammonia solution and metal salt in liquid state to form ultrafine metal hydroxide. Hollow carbon nanospheres containing ultrafine Ni(OH)2 nanocrystals within the shell exhibit high structural stability during repetitive conversion reactions with Li-ions, as well as superior cycling and rate performances when comparing to those of bare Ni(OH)2 nanopowders. |
| Databáze: | OpenAIRE |
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