In-situ growth of graphene decorated Ni                         3                         S                         2                          pyramids on Ni foam for high-performance overall water splitting

Jing Yu; Yue Du; Qianqian Li; Liang Zhen; Vinayak P. Dravid; Jinsong Wu; Cheng Yan Xu

doi:10.1016/j.apsusc.2018.09.177

In-situ growth of graphene decorated Ni ₃ S ₂ pyramids on Ni foam for high-performance overall water splitting

Jing Yu
, Yue Du
, Qianqian Li
, Liang Zhen
, Vinayak P. Dravid
, Jinsong Wu^*
, Cheng Yan Xu

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology
Northwestern University
Harbin Institute of Technology (Shenzhen)
Shanghai University
Harbin Institute of Technology

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

45 Scopus citations

Abstract

Rational design of high-performance electrocatalysts with low cost and large abundance is highly desirable for water splitting technology. Here we report the synthesis of Ni ₃ S ₂ pyramids coated with crimped graphene (Ni ₃ S ₂ @G), the unique configuration of which endows Ni ₃ S ₂ @G with large roughness, creating much more active sites along the edges. Moreover, the coupling of graphene enhances the electrical conductivity of the nanocomposite, and thus improves the electrocatalytic activity due to synergistic effect between graphene and Ni ₃ S ₂ . Ni ₃ S ₂ @G hybrid shows outstanding performance toward both hydrogen evolution reactions (HER) and oxygen evolution reactions (OER) with low overpotentials (η ₁₀ = 103 mV for HER and η ₂₀ = 294 mV for OER) and small Tafel slope. Ni ₃ S ₂ @G electrode also exhibits superior full water splitting ability with a low cell voltage of 1.66 V.

Original language	English
Pages (from-to)	772-779
Number of pages	8
Journal	Applied Surface Science
Volume	465
DOIs	https://doi.org/10.1016/j.apsusc.2018.09.177
State	Published - 28 Jan 2019

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Electrocatalyst
Graphene
Nickel sulphide
Synergistic effect
Water splitting

Access to Document

10.1016/j.apsusc.2018.09.177

Cite this

Yu, J., Du, Y., Li, Q., Zhen, L., Dravid, V. P., Wu, J., & Xu, C. Y. (2019). In-situ growth of graphene decorated Ni ₃ S ₂ pyramids on Ni foam for high-performance overall water splitting Applied Surface Science, 465, 772-779. https://doi.org/10.1016/j.apsusc.2018.09.177

@article{91180e177e644122b92694feec90269d,

title = " In-situ growth of graphene decorated Ni 3 S 2 pyramids on Ni foam for high-performance overall water splitting ",

abstract = " Rational design of high-performance electrocatalysts with low cost and large abundance is highly desirable for water splitting technology. Here we report the synthesis of Ni 3 S 2 pyramids coated with crimped graphene (Ni 3 S 2 @G), the unique configuration of which endows Ni 3 S 2 @G with large roughness, creating much more active sites along the edges. Moreover, the coupling of graphene enhances the electrical conductivity of the nanocomposite, and thus improves the electrocatalytic activity due to synergistic effect between graphene and Ni 3 S 2 . Ni 3 S 2 @G hybrid shows outstanding performance toward both hydrogen evolution reactions (HER) and oxygen evolution reactions (OER) with low overpotentials (η 10 = 103 mV for HER and η 20 = 294 mV for OER) and small Tafel slope. Ni 3 S 2 @G electrode also exhibits superior full water splitting ability with a low cell voltage of 1.66 V.",

keywords = "Electrocatalyst, Graphene, Nickel sulphide, Synergistic effect, Water splitting",

author = "Jing Yu and Yue Du and Qianqian Li and Liang Zhen and Dravid, \{Vinayak P.\} and Jinsong Wu and Xu, \{Cheng Yan\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2019",

month = jan,

day = "28",

doi = "10.1016/j.apsusc.2018.09.177",

language = "英语",

volume = "465",

pages = "772--779",

journal = "Applied Surface Science",

issn = "0169-4332",

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}

Yu, J, Du, Y, Li, Q, Zhen, L, Dravid, VP, Wu, J & Xu, CY 2019, ' In-situ growth of graphene decorated Ni ₃ S ₂ pyramids on Ni foam for high-performance overall water splitting ', Applied Surface Science, vol. 465, pp. 772-779. https://doi.org/10.1016/j.apsusc.2018.09.177

In-situ growth of graphene decorated Ni ₃ S ₂ pyramids on Ni foam for high-performance overall water splitting . / Yu, Jing; Du, Yue; Li, Qianqian et al.
In: Applied Surface Science, Vol. 465, 28.01.2019, p. 772-779.

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

TY - JOUR

T1 - In-situ growth of graphene decorated Ni 3 S 2 pyramids on Ni foam for high-performance overall water splitting

AU - Yu, Jing

AU - Du, Yue

AU - Li, Qianqian

AU - Zhen, Liang

AU - Dravid, Vinayak P.

AU - Wu, Jinsong

AU - Xu, Cheng Yan

PY - 2019/1/28

Y1 - 2019/1/28

N2 - Rational design of high-performance electrocatalysts with low cost and large abundance is highly desirable for water splitting technology. Here we report the synthesis of Ni 3 S 2 pyramids coated with crimped graphene (Ni 3 S 2 @G), the unique configuration of which endows Ni 3 S 2 @G with large roughness, creating much more active sites along the edges. Moreover, the coupling of graphene enhances the electrical conductivity of the nanocomposite, and thus improves the electrocatalytic activity due to synergistic effect between graphene and Ni 3 S 2 . Ni 3 S 2 @G hybrid shows outstanding performance toward both hydrogen evolution reactions (HER) and oxygen evolution reactions (OER) with low overpotentials (η 10 = 103 mV for HER and η 20 = 294 mV for OER) and small Tafel slope. Ni 3 S 2 @G electrode also exhibits superior full water splitting ability with a low cell voltage of 1.66 V.

AB - Rational design of high-performance electrocatalysts with low cost and large abundance is highly desirable for water splitting technology. Here we report the synthesis of Ni 3 S 2 pyramids coated with crimped graphene (Ni 3 S 2 @G), the unique configuration of which endows Ni 3 S 2 @G with large roughness, creating much more active sites along the edges. Moreover, the coupling of graphene enhances the electrical conductivity of the nanocomposite, and thus improves the electrocatalytic activity due to synergistic effect between graphene and Ni 3 S 2 . Ni 3 S 2 @G hybrid shows outstanding performance toward both hydrogen evolution reactions (HER) and oxygen evolution reactions (OER) with low overpotentials (η 10 = 103 mV for HER and η 20 = 294 mV for OER) and small Tafel slope. Ni 3 S 2 @G electrode also exhibits superior full water splitting ability with a low cell voltage of 1.66 V.

KW - Electrocatalyst

KW - Graphene

KW - Nickel sulphide

KW - Synergistic effect

KW - Water splitting

UR - https://www.scopus.com/pages/publications/85054167799

U2 - 10.1016/j.apsusc.2018.09.177

DO - 10.1016/j.apsusc.2018.09.177

M3 - 文章

AN - SCOPUS:85054167799

SN - 0169-4332

VL - 465

SP - 772

EP - 779

JO - Applied Surface Science

JF - Applied Surface Science

ER -

Yu J, Du Y, Li Q, Zhen L, Dravid VP, Wu J et al. In-situ growth of graphene decorated Ni ₃ S ₂ pyramids on Ni foam for high-performance overall water splitting Applied Surface Science. 2019 Jan 28;465:772-779. doi: 10.1016/j.apsusc.2018.09.177