Efficient Hydrogen and Oxygen Evolution Catalysis Using 3D-Structured Nickel Phosphosulfide Nanosheets in Alkaline Media

Lei Lin; Qiang Fu; Junbei Hu; Ran Wang; Xianjie Wang

doi:10.3390/molecules28010315

Efficient Hydrogen and Oxygen Evolution Catalysis Using 3D-Structured Nickel Phosphosulfide Nanosheets in Alkaline Media

Lei Lin
, Qiang Fu^*
, Junbei Hu
, Ran Wang
, Xianjie Wang^*

^*Corresponding author for this work

School of Physics, Harbin Institute of Technology
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Water electrolysis offers a zero-carbon route to generate renewable energy conversion systems. Herein, a self-supported nickel phosphosulfide nanosheet (NS) electrocatalyst was fabricated at a low temperature on carbon cloth, which was then subjected to Ar etching to enhance its catalytic activity. Etching resulted in better hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performance than other samples, with overpotentials of 103.1 mV (at 10 mA cm⁻²) and 278.9 mV (at 50 mA cm⁻²), respectively. The characterization results confirmed that Ar etching created a thin amorphous layer around the NiPS₃ NSs, which increased the number of active sites and modulated their electronic structures. These 3D-structured NiPS₃ NSs and their subsequent Ar etching process show promise for applications in overall water splitting in alkaline media.

Original language	English
Article number	315
Journal	Molecules
Volume	28
Issue number	1
DOIs	https://doi.org/10.3390/molecules28010315
State	Published - Jan 2023
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Ni-based nanomaterials
hydrogen evolution reaction
oxygen evolution reaction
plasma surface treatment
vacancy defect
water splitting

Access to Document

10.3390/molecules28010315

Cite this

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title = "Efficient Hydrogen and Oxygen Evolution Catalysis Using 3D-Structured Nickel Phosphosulfide Nanosheets in Alkaline Media",

abstract = "Water electrolysis offers a zero-carbon route to generate renewable energy conversion systems. Herein, a self-supported nickel phosphosulfide nanosheet (NS) electrocatalyst was fabricated at a low temperature on carbon cloth, which was then subjected to Ar etching to enhance its catalytic activity. Etching resulted in better hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performance than other samples, with overpotentials of 103.1 mV (at 10 mA cm−2) and 278.9 mV (at 50 mA cm−2), respectively. The characterization results confirmed that Ar etching created a thin amorphous layer around the NiPS3 NSs, which increased the number of active sites and modulated their electronic structures. These 3D-structured NiPS3 NSs and their subsequent Ar etching process show promise for applications in overall water splitting in alkaline media.",

keywords = "Ni-based nanomaterials, hydrogen evolution reaction, oxygen evolution reaction, plasma surface treatment, vacancy defect, water splitting",

author = "Lei Lin and Qiang Fu and Junbei Hu and Ran Wang and Xianjie Wang",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors.",

year = "2023",

month = jan,

doi = "10.3390/molecules28010315",

language = "英语",

volume = "28",

journal = "Molecules",

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T1 - Efficient Hydrogen and Oxygen Evolution Catalysis Using 3D-Structured Nickel Phosphosulfide Nanosheets in Alkaline Media

AU - Lin, Lei

AU - Fu, Qiang

AU - Hu, Junbei

AU - Wang, Ran

AU - Wang, Xianjie

PY - 2023/1

Y1 - 2023/1

N2 - Water electrolysis offers a zero-carbon route to generate renewable energy conversion systems. Herein, a self-supported nickel phosphosulfide nanosheet (NS) electrocatalyst was fabricated at a low temperature on carbon cloth, which was then subjected to Ar etching to enhance its catalytic activity. Etching resulted in better hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performance than other samples, with overpotentials of 103.1 mV (at 10 mA cm−2) and 278.9 mV (at 50 mA cm−2), respectively. The characterization results confirmed that Ar etching created a thin amorphous layer around the NiPS3 NSs, which increased the number of active sites and modulated their electronic structures. These 3D-structured NiPS3 NSs and their subsequent Ar etching process show promise for applications in overall water splitting in alkaline media.

AB - Water electrolysis offers a zero-carbon route to generate renewable energy conversion systems. Herein, a self-supported nickel phosphosulfide nanosheet (NS) electrocatalyst was fabricated at a low temperature on carbon cloth, which was then subjected to Ar etching to enhance its catalytic activity. Etching resulted in better hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performance than other samples, with overpotentials of 103.1 mV (at 10 mA cm−2) and 278.9 mV (at 50 mA cm−2), respectively. The characterization results confirmed that Ar etching created a thin amorphous layer around the NiPS3 NSs, which increased the number of active sites and modulated their electronic structures. These 3D-structured NiPS3 NSs and their subsequent Ar etching process show promise for applications in overall water splitting in alkaline media.

KW - Ni-based nanomaterials

KW - hydrogen evolution reaction

KW - oxygen evolution reaction

KW - plasma surface treatment

KW - vacancy defect

KW - water splitting

UR - https://www.scopus.com/pages/publications/85145692204

U2 - 10.3390/molecules28010315

DO - 10.3390/molecules28010315

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Efficient Hydrogen and Oxygen Evolution Catalysis Using 3D-Structured Nickel Phosphosulfide Nanosheets in Alkaline Media

Abstract

UN SDGs

Keywords

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