锌
析氧
硫化锌
电池(电)
硫化物
分解水
异质结
无机化学
化学
电解
化学工程
电解水
材料科学
冶金
电化学
光电子学
催化作用
光催化
电极
功率(物理)
物理化学
工程类
物理
电解质
量子力学
生物化学
作者
Jiaxin Dang,Mingming Yin,Dianhui Pan,Ziqi Tian,Genman Chen,Jiaqun Zou,He Miao,Qian Wang,Jinliang Yuan
标识
DOI:10.1016/j.cej.2023.141357
摘要
Developing the tri-functional catalysts to facilitate the oxygen evolution, oxygen reduction and hydrogen evolution reactions (OER, ORR and HER) is meaningful for zinc-air batteries (ZABs) and water splitting. Herein, we construct a novel metal sulfide heterostructure (INF-FeCuS) composed of Cu7S4 and Fe0.95S1.05. INF-FeCuS exhibits the superior tri-functional catalytic property with the OER, ORR and HER potentials of 1.45 V at 100 mA cm−2, 0.68 V at 10 mA cm−2, 292 mV at 100 mA cm−2 respectively. INF-FeCuS with a high ion conversion ability also can be used in the alkaline zinc battery with a discharge specific capacity of 446.0 mAh/g. Using the four-functional INF-FeCuS, we can fabricate a new-type of alkaline hybrid zinc battery (AHZB) with a peak power density of 203.4 mW cm−2 and energy efficiency of over 70 %. Interestingly, a single AHZB with INF-FeCuS can drive the electrolyzer with INF-FeCuS to produce hydrogen.
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