Synergizing Hydrogen Spillover and Deprotonation by the Internal Polarization Field in a MoS 2 /NiPS 3  Vertical Heterostructure for Boosted Water Electrolysis

Liu, Yaoda; Chen, Ya; Tian, Yahui; Sakthivel, Thangavel; Liu, Hang; Guo, Shengwu; Zeng, Haibo; Dai, Zhengfei

doi:10.1002/adma.202203615

articleAdvanced MaterialsJul 28, 2022Closed access

Synergizing Hydrogen Spillover and Deprotonation by the Internal Polarization Field in a MoS 2 /NiPS 3 Vertical Heterostructure for Boosted Water Electrolysis

YLYaoda Liu YCYa Chen YTYahui Tian TSThangavel Sakthivel HLHang Liu

Xi'an Jiaotong University · Nanjing University of Science and Technology

PubMed

Indexed incrossrefpubmed

Abstract

Abstract Hydrogen spillover (HSo) has emerged to upgrade the hydrogen evolution reaction (HER) activity of Pt‐support electrocatalysts, but it is not applicable to the deprotonated oxygen evolution reaction (OER). Non‐precious catalysts that can perform well in both HSo and deprotonation (DeP) are extremely desirable for a sustainable hydrogen economy. Herein, an affordable MoS 2 /NiPS 3 vertical heterostructure catalyst is presented to synergize HSo and DeP for efficient water electrolysis. The internal polarization field (IPF) is clarified as the driving force of HSo in HER electrocatalysis. The HSo from the MoS 2 edge to NiPS 3 can activate the NiPS 3 basal plane to boost the HER activity of the MoS 2 /NiPS…

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Topics & keywords

Topics

Keywords

Water splitting
Electrolysis of water
Materials science
Heterojunction
Oxygen evolution
Electrocatalyst
Electrolysis
Hydrogen

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