Tunable active edge sites in PtSe2films towards hydrogen evolution reaction

Shenghuang Lin; Yang Liu; Zhixin Hu; Wei Lu; Chun Hin Mak; Longhui Zeng; Jiong Zhao; Yanyong Li; Feng Yan; Yuen Hong Tsang; Xuming Zhang; Shu Ping Lau

doi:10.1016/j.nanoen.2017.10.038

Tunable active edge sites in PtSe₂films towards hydrogen evolution reaction

Shenghuang Lin, Yang Liu, Zhixin Hu, Wei Lu, Chun Hin Mak, Longhui Zeng, Jiong Zhao, Yanyong Li, Feng Yan, Yuen Hong Tsang, Xuming Zhang, Shu Ping Lau

Research output: Journal article publication › Journal article › Academic research › peer-review

114 Citations (Scopus)

Abstract

Recent research effort on the development of effective hydrogen evolution reaction (HER) is to modulate the active edge sites through controlling surface structure at the atomic scale. Here we firstly demonstrate a facile strategy to synthesize large-area and edge-rich platinum diselenide (PtSe2) via selenization of Pt films by magnetron sputtering physical deposition method. The edge site density of the PtSe2can be effectively controlled by tuning the thickness of Pt films. The HER activity of the PtSe2can be enhanced significantly as the active edge site density increases. The maximum cathodic current density of 227 mA/cm2can be obtained through increasing the edge density, which well agrees with the density functional theory calculations. Our work provides a fundamental insight on the effect of active edge site density towards HER.

Original language	English
Pages (from-to)	26-33
Number of pages	8
Journal	Nano Energy
Volume	42
DOIs	https://doi.org/10.1016/j.nanoen.2017.10.038
Publication status	Published - 1 Dec 2017

Keywords

Active sites
Hydrogen evolution reaction
Layered materials
PtSe 2

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science
Electrical and Electronic Engineering

UN SDGs

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

More information

10.1016/j.nanoen.2017.10.038

http://hdl.handle.net/10397/73764

Cite this

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title = "Tunable active edge sites in PtSe2films towards hydrogen evolution reaction",

abstract = "Recent research effort on the development of effective hydrogen evolution reaction (HER) is to modulate the active edge sites through controlling surface structure at the atomic scale. Here we firstly demonstrate a facile strategy to synthesize large-area and edge-rich platinum diselenide (PtSe2) via selenization of Pt films by magnetron sputtering physical deposition method. The edge site density of the PtSe2can be effectively controlled by tuning the thickness of Pt films. The HER activity of the PtSe2can be enhanced significantly as the active edge site density increases. The maximum cathodic current density of 227 mA/cm2can be obtained through increasing the edge density, which well agrees with the density functional theory calculations. Our work provides a fundamental insight on the effect of active edge site density towards HER.",

keywords = "Active sites, Hydrogen evolution reaction, Layered materials, PtSe 2",

author = "Shenghuang Lin and Yang Liu and Zhixin Hu and Wei Lu and Mak, {Chun Hin} and Longhui Zeng and Jiong Zhao and Yanyong Li and Feng Yan and Tsang, {Yuen Hong} and Xuming Zhang and Lau, {Shu Ping}",

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doi = "10.1016/j.nanoen.2017.10.038",

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AU - Lin, Shenghuang

AU - Liu, Yang

AU - Hu, Zhixin

AU - Lu, Wei

AU - Mak, Chun Hin

AU - Zeng, Longhui

AU - Zhao, Jiong

AU - Li, Yanyong

AU - Yan, Feng

AU - Tsang, Yuen Hong

AU - Zhang, Xuming

AU - Lau, Shu Ping

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Recent research effort on the development of effective hydrogen evolution reaction (HER) is to modulate the active edge sites through controlling surface structure at the atomic scale. Here we firstly demonstrate a facile strategy to synthesize large-area and edge-rich platinum diselenide (PtSe2) via selenization of Pt films by magnetron sputtering physical deposition method. The edge site density of the PtSe2can be effectively controlled by tuning the thickness of Pt films. The HER activity of the PtSe2can be enhanced significantly as the active edge site density increases. The maximum cathodic current density of 227 mA/cm2can be obtained through increasing the edge density, which well agrees with the density functional theory calculations. Our work provides a fundamental insight on the effect of active edge site density towards HER.

AB - Recent research effort on the development of effective hydrogen evolution reaction (HER) is to modulate the active edge sites through controlling surface structure at the atomic scale. Here we firstly demonstrate a facile strategy to synthesize large-area and edge-rich platinum diselenide (PtSe2) via selenization of Pt films by magnetron sputtering physical deposition method. The edge site density of the PtSe2can be effectively controlled by tuning the thickness of Pt films. The HER activity of the PtSe2can be enhanced significantly as the active edge site density increases. The maximum cathodic current density of 227 mA/cm2can be obtained through increasing the edge density, which well agrees with the density functional theory calculations. Our work provides a fundamental insight on the effect of active edge site density towards HER.

KW - Active sites

KW - Hydrogen evolution reaction

KW - Layered materials

KW - PtSe 2

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JO - Nano Energy

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