Layered VO2@N-doped carbon composites for high-performance rechargeable aqueous zinc-ion batteries
| Autor: | Huan Pang, Ting-Ting Lv, Xin Luo, Guo-Qiang Yuan, Shengyang Yang |
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| Rok vydání: | 2022 |
| Předmět: |
Aqueous solution
Materials science General Chemical Engineering Composite number technology industry and agriculture chemistry.chemical_element General Chemistry Conductivity Electrochemistry Industrial and Manufacturing Engineering Cathode law.invention Amorphous solid Chemical engineering chemistry law Environmental Chemistry Calcination human activities Carbon |
| Zdroj: | Chemical Engineering Journal. 428:131211 |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2021.131211 |
| Popis: | The electrochemical performance of rechargeable aqueous zinc-ion batteries (AZIBs) to a great extent depends on the conductivity and structural stability of the cathode material. Herein, we report a facile calcination process to prepare the composite of VO2 and amorphous N-doped carbon using ultrathin V6O13 nanobelts coated with polydopamine as precursors. The amorphous structure of N-doped carbon enables the layered VO2@N-doped carbon composites to have more active sites and higher conductivity, and the amorphous structure has less structural change during ion diffusion. Therefore, the VO2@N-doped carbon composites exhibit excellent electrochemical performance. This work should open a new and efficient avenue for designing the cathodes of AZIBs with excellent performance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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