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首页> 外文期刊>Catalysis science & technology >Boosting oxygen electrocatalytic reactions with Mn3O4/self-growth N-doped carbon nanotubes induced by transition metal cobalt
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Boosting oxygen electrocatalytic reactions with Mn3O4/self-growth N-doped carbon nanotubes induced by transition metal cobalt

机译：提高氧气electrocatalytic反应Mn3O4 /自我成长n型碳纳米管由过渡金属钴

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摘要

Oxygen electrocatalytic activities in transition-metal atoms and/or heteroatom-doped carbon nanostructures are strongly dependent on their conductivity and electron configurations. Herein, this study reports Mn3O4/self-growth carbon nanotubes induced by a transition metal cobalt hybrid as the efficient bifunctional oxygen electrocatalyst for rechargeable zinc-air batteries. The positive effect posed by the hierarchical structure and heteroatom doping provides an extra electronic state, eventually enhancing the oxygen adsorption and charge transfer during oxygen electrochemical reactions. The assembled rechargeable zinc-air battery achieves a high power density of 128 mW cm(-2) and an excellent cycle stability of over 160 h at 5 mA cm(-2). This study provides a feasible approach for designing efficient bifunctional oxygen electrocatalysts for broad applications in the field of energy conversion technology.
机译：氧气electrocatalytic活动过渡金属原子和/或heteroatom-doped碳纳米结构强烈依赖电导率和电子构型。在此,本研究报告Mn3O4 /自我成长碳纳米管引起的过渡金属钴混合高效双官能氧气electrocatalyst充电锌空气电池。层次结构和杂原子掺杂提供一个额外的电子状态,最终提高氧气吸附和电荷转移过程中氧的电化学反应。可充电锌空气电池组装实现高功率密度的128 mW厘米(2)和一个优秀的周期在160 h的稳定马5厘米(2)。方法设计高效的双官能氧气electrocatalysts广泛应用能量转换领域的技术。

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