Electrospun Mn-N-C Nanofiber Electrocatalyst for the Application of Li-O2 Batteries.
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| Title: | Electrospun Mn-N-C Nanofiber Electrocatalyst for the Application of Li-O |
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| Authors: | Li, Zhuxin1 (AUTHOR), Yu, Hongquan2 (AUTHOR), Ma, Kai1 (AUTHOR), Shu, Qingzhu1 (AUTHOR), Zhang, Yong1 (AUTHOR), Liu, Shuhong1 (AUTHOR), Li, Xufeng1 (AUTHOR), Ge, Jing1 (AUTHOR), Gao, Yunlong1 (AUTHOR), Zhao, Hong1 (AUTHOR) Zhaohong@djtu.edu.cn |
| Source: | Journal of Electronic Materials. Jul2025, Vol. 54 Issue 7, p5348-5355. 8p. |
| Subjects: | Manganese acetate, Physical & theoretical chemistry, Lithium-air batteries, Oxygen reduction, Heat treatment, Polyacrylonitriles |
| Abstract: | A series of Mn-N-C catalysts were fabricated by integrating electrospinning technology with subsequent heat treatment at 700°C, 800°C, and 900°C, using manganese acetate (Mn(OAc)2) and polyacrylonitrile (PAN) as the main raw materials. Under various calcination temperature conditions, all the Mn-N-C catalysts presented a nanowire morphology with a diameter of approximately 300 nm. A series of electrochemical performance tests for Li-O2 batteries were carried out on the Mn-N-C catalysts. The results showed that all the Mn-N-C catalysts demonstrated good oxygen reduction reaction (ORR) activity. Among them, the Mn-800 catalyst had the lowest overpotential (1.5 V) and superior cycling performance (more than 150 cycles at 1000 mA g−1). This outcome implies that the Mn-800 catalyst holds significant potential in enhancing battery performance and prolonging battery lifespan, offering novel ideas and approaches for developing high-performance Li-O2 batteries. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | A series of Mn-N-C catalysts were fabricated by integrating electrospinning technology with subsequent heat treatment at 700°C, 800°C, and 900°C, using manganese acetate (Mn(OAc)2) and polyacrylonitrile (PAN) as the main raw materials. Under various calcination temperature conditions, all the Mn-N-C catalysts presented a nanowire morphology with a diameter of approximately 300 nm. A series of electrochemical performance tests for Li-O2 batteries were carried out on the Mn-N-C catalysts. The results showed that all the Mn-N-C catalysts demonstrated good oxygen reduction reaction (ORR) activity. Among them, the Mn-800 catalyst had the lowest overpotential (1.5 V) and superior cycling performance (more than 150 cycles at 1000 mA g−1). This outcome implies that the Mn-800 catalyst holds significant potential in enhancing battery performance and prolonging battery lifespan, offering novel ideas and approaches for developing high-performance Li-O2 batteries. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 03615235 |
| DOI: | 10.1007/s11664-025-11955-y |
