Photo-enhanced electrocatalysis of sea-urchin shaped Ni3(VO4)2 for the hydrogen evolution reaction

Bin Chang; Gang Zhao; Yongliang Shao; Lei Zhang; Baibiao Huang; Yongzhong Wu; Xiaopeng Hao

doi:10.1039/c7ta05642g

Photo-enhanced electrocatalysis of sea-urchin shaped Ni₃(VO₄)₂ for the hydrogen evolution reaction

Bin Chang, Gang Zhao, Yongliang Shao, Lei Zhang, Baibiao Huang, Yongzhong Wu^*, Xiaopeng Hao

^*Corresponding author for this work

Physical Sciences and Engineering

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

38 Scopus citations

Abstract

Efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) are central to the development of renewable energy. In this study, a photoresponse electrocatalyst Ni₃(VO₄)₂ with a sea-urchin shaped structure was prepared by a facile solvothermal procedure. Numerous thin nanoflakes on the spherical surface increased active sites which play a promoting role in the photocatalytic or electrocatalytic reactions. Under visible light irradiation, the sea-urchin shaped Ni₃(VO₄)₂ demonstrated improved HER activity without using any cocatalysts, featured by a small overpotential of -90 mV at 10 mA cm^-2, a high current density, a small Tafel slope of 50 mV per decade and good stability in 0.5 M H₂SO₄. The results may offer a simple and mild methodology for the preparation of HER electrocatalysts exhibiting excellent photo-enhanced electrocatalytic activity.

Original language	English (US)
Pages (from-to)	18038-18043
Number of pages	6
Journal	JOURNAL OF MATERIALS CHEMISTRY A
Volume	5
Issue number	34
DOIs	https://doi.org/10.1039/c7ta05642g
State	Published - 2017

Bibliographical note

Funding Information:
This work is supported by the National Natural Science Foundation of China (Contract No. 51572153 and 51402171), the Fundamental Research Funds of Shandong University and Taishan Scholars Program of Shandong Province.

Publisher Copyright:
© 2017 The Royal Society of Chemistry.

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

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

Access to Document

10.1039/c7ta05642g

Cite this

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title = "Photo-enhanced electrocatalysis of sea-urchin shaped Ni3(VO4)2 for the hydrogen evolution reaction",

abstract = "Efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) are central to the development of renewable energy. In this study, a photoresponse electrocatalyst Ni3(VO4)2 with a sea-urchin shaped structure was prepared by a facile solvothermal procedure. Numerous thin nanoflakes on the spherical surface increased active sites which play a promoting role in the photocatalytic or electrocatalytic reactions. Under visible light irradiation, the sea-urchin shaped Ni3(VO4)2 demonstrated improved HER activity without using any cocatalysts, featured by a small overpotential of -90 mV at 10 mA cm-2, a high current density, a small Tafel slope of 50 mV per decade and good stability in 0.5 M H2SO4. The results may offer a simple and mild methodology for the preparation of HER electrocatalysts exhibiting excellent photo-enhanced electrocatalytic activity.",

author = "Bin Chang and Gang Zhao and Yongliang Shao and Lei Zhang and Baibiao Huang and Yongzhong Wu and Xiaopeng Hao",

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AU - Chang, Bin

AU - Zhao, Gang

AU - Shao, Yongliang

AU - Zhang, Lei

AU - Huang, Baibiao

AU - Wu, Yongzhong

AU - Hao, Xiaopeng

N1 - Funding Information: This work is supported by the National Natural Science Foundation of China (Contract No. 51572153 and 51402171), the Fundamental Research Funds of Shandong University and Taishan Scholars Program of Shandong Province. Publisher Copyright: © 2017 The Royal Society of Chemistry.

PY - 2017

Y1 - 2017

N2 - Efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) are central to the development of renewable energy. In this study, a photoresponse electrocatalyst Ni3(VO4)2 with a sea-urchin shaped structure was prepared by a facile solvothermal procedure. Numerous thin nanoflakes on the spherical surface increased active sites which play a promoting role in the photocatalytic or electrocatalytic reactions. Under visible light irradiation, the sea-urchin shaped Ni3(VO4)2 demonstrated improved HER activity without using any cocatalysts, featured by a small overpotential of -90 mV at 10 mA cm-2, a high current density, a small Tafel slope of 50 mV per decade and good stability in 0.5 M H2SO4. The results may offer a simple and mild methodology for the preparation of HER electrocatalysts exhibiting excellent photo-enhanced electrocatalytic activity.

AB - Efficient and stable electrocatalysts for the hydrogen evolution reaction (HER) are central to the development of renewable energy. In this study, a photoresponse electrocatalyst Ni3(VO4)2 with a sea-urchin shaped structure was prepared by a facile solvothermal procedure. Numerous thin nanoflakes on the spherical surface increased active sites which play a promoting role in the photocatalytic or electrocatalytic reactions. Under visible light irradiation, the sea-urchin shaped Ni3(VO4)2 demonstrated improved HER activity without using any cocatalysts, featured by a small overpotential of -90 mV at 10 mA cm-2, a high current density, a small Tafel slope of 50 mV per decade and good stability in 0.5 M H2SO4. The results may offer a simple and mild methodology for the preparation of HER electrocatalysts exhibiting excellent photo-enhanced electrocatalytic activity.

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