MoS2 modified NiFe LDH hierarchical structure as efficient photoanode towards photoelectrochemical water splitting

被引：3

作者：

Yang, Xiaohong ^{[1
,2
]}

Sun, Jiaojiao ^{[1
]}

Fu, Haitao ^{[1
]}

Chen, Jie ^{[3
]}

Fan, Jiaqi ^{[1
]}

Tong, Xinhui ^{[1
]}

Ran, Xiaoli ^{[1
]}

An, Xizhong ^{[1
]}

机构：

[1] Northeastern Univ, Sch Met, Key Lab Ecol Met Multimet Mineral, Minist Educ, Shenyang 110819, Peoples R China

[2] Northeastern Univ, Inst Frontier Technol Low Carbon Steelmaking, Sch Met, Shenyang 110819, Peoples R China

[3] Shanghai Justhave Environm Protect Technol Co Ltd, Shanghai 200433, Peoples R China

来源：

POWDER TECHNOLOGY | 2024年 / 431卷

关键词：

PEC water splitting; Photoanode; MoS2/NiFe LDH; Z-scheme heterostructure; HYDROGEN EVOLUTION; CHARGE-TRANSFER; HETEROJUNCTION; PERFORMANCE; HETEROSTRUCTURE; NANOPARTICLES; FABRICATION; ELECTRODES; REDUCTION; OXIDATION;

D O I：

10.1016/j.powtec.2023.119051

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Designing effective photo electrode for photo-electrochemical (PEC) water splitting is highly demanded yet challengeable because of the limited sunlight utilization and retarded redox reaction kinetics. This work introduces a feasible one-pot hydrothermal strategy of fabricating MoS2/NiFe LDH p-n heterojunctions on conductive porous nickel foam as an efficient photoanode for PEC water splitting. A great enhancement for PEC water oxidation is achieved because of the improved sunlight absorption and the increased photo-excited charge separation. The optimal 10% MoS2/Ni0.9Fe0.1 LDH/nickel foam photoanode demonstrates 3.8 times enhanced PEC activity than the Ni0.9Fe0.1 LDH/NF counterpart and a low Tafel plot of 54 mV dec(-1). The bandgap modulation and the Z-scheme charge transfer dynamics due to the formation of MoS2/NiFe LDH p-n heterostructure, along with the high conductivity of porous nickel foam account for the increased photo-current conversion efficiency and the boosted charge transfer.

引用

页数：11

共 42 条

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