过电位
双功能
双金属片
催化作用
析氧
电池(电)
锌
无机化学
材料科学
双功能催化剂
化学
电解质
化学工程
有机化学
电化学
电极
冶金
物理化学
功率(物理)
工程类
物理
量子力学
作者
Yuxin Wang,Renjie Liu,Wendi Chen,Wenming Li,Zheng Wei,Hui Zhang,Zhongyi Zhang
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2022-10-24
卷期号:10 (44): 14486-14494
被引量:5
标识
DOI:10.1021/acssuschemeng.2c03971
摘要
A composite bifunctional catalyst (FeNiS-NBC/C) was prepared with iron nickel sulfide nanoparticles embedded in a hybrid carbon matrix. The unique introduction of the boron element modulated the structure in achieving an ultralow oxygen evolution reaction (OER) overpotential. The incorporation of cellulose in the synthesis has improved the oxygen reduction reaction (ORR) performance. In the two-step synthesized FeNiS-NBC/C, a mixed transport network formed, with enhanced heterostructures and abundant catalytic sites. FeNiS-NBC/C exhibits the OER overpotential of 216 mV at the current density of 10 mA cm–2, as well as with the excellent ORR performance. The low OER overpotential reduces the oxidation corrosion in the rechargeable zinc-air batteries. The zinc-air battery with a liquid electrolyte assembled using FeNiS-NBC/C exhibited the power density of 133.0 mW cm–2 and specific capacity of 797.8 mAh g–1. The solid-state zinc-air battery assembled using FeNiS-NBC/C exhibited the power density of 61.4 mW cm–2 and can be stably charge–discharge cycled for 46 h. This work pointed out a novel avenue to construct bifunctional catalysts in the future for advanced zinc-air batteries.
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