Nickel foam-loaded Ni3S2/Fe3S4/WS2 heterostructure as efficient bifunctional electrocatalysts for overall water splitting

被引：0

作者：

Zhang, Li ^{[1
]}

Li, Congling ^{[1
]}

Xia, Wei ^{[1
]}

Yu, Xuemin ^{[1
]}

Zheng, Li ^{[1
]}

Liu, Rui ^{[2
]}

Guo, Xingyu ^{[2
]}

机构：

[1] Shanghai Univ Engn Sci, Coll Chem & Chem Engn, Shanghai 201620, Peoples R China

[2] Tongji Univ, Sch Mat Sci & Engn, Key Lab Adv Civil Engn Mat, Minist Educ, Shanghai 201804, Peoples R China

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2025年 / 179卷

基金：

中国国家自然科学基金;

关键词：

Water splitting; Heterostructure; Bifunctional electrocatalysts; Etching; Sulfurization; FACILE SYNTHESIS; NANOSHEETS;

D O I：

10.1016/j.inoche.2025.114807

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Electrocatalytic overall water splitting offers high efficiency and purity but is hindered by sluggish reaction kinetics and high overpotentials in hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Exploration of low-cost, efficient, abundantly stocked, and stable electrocatalysts is the key to achieving clean energy conversion. Herein, a high performance bifunctional heterojunction catalyst Ni3S2/Fe3S4/WS2@NF was successfully prepared by simple hydrothermal, etching and sulfurization. The incorporation of tungsten disulfide (WS2) into the Ni3S2/Fe3S4 heterostructure synergistically enhances active sites and charge transfer kinetics. The Ni3S2/Fe3S4/WS2@NF electrocatalyst demonstrated excellent HER and OER performance in 1 M KOH, requiring overpotentials of only 97 and 192 mV, respectively, to achieve a current density of 10 mA cm-2. Furthermore, the catalyst exhibited good stability for overall water splitting, maintaining a current density of 10 mA cm-2 for 25 h. This work provides valuable insights into the design of advanced electrocatalysts for sustainable energy applications.

引用

页数：8

共 50 条

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