| Autor: |
Zhang, Junfeng, Liu, Haotian, Zhu, Weikang, Chen, Bin, Yue, Runfei, Yin, Shuoyao, Xie, Na, Li, Ran, Yin, Yan |
| Předmět: |
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| Zdroj: |
Advanced Materials Interfaces; 2/3/2023, Vol. 10 Issue 4, p1-8, 8p |
| Abstrakt: |
The design of the efficient, flexible air electrode for enhancing the Zn‐air batteries (ZABs) performance is vital in developing a new portable rechargeable power supply. Emerging research indicates that non‐precious metal materials have promising activity for oxygen reduction/evolution in alkaline conditions while constructing a high‐performance and reliable electrode is still a big challenge at the present stage. In this work, a bimetal doped zeolitic imidazolate framework (ZIF) film is synthesized by fast current‐driven synthesis (FCDS) on a thin carbon nanotube film (CNTF). After carbonization at 950 °C, CoFe‐N‐C nanofoam formed on the CNTF, resulting in binder‐free, flexible electrodes. It exhibits excellent activity and stability toward oxygen reduction and evolution. The CoFe‐N‐C/CNTF‐based liquid‐state ZAB shows an output power density of 294 mW cm−2. When applied in solid‐state ZAB, the flexible battery shows high power density and excellent cycling stability. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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