Iron-Doped Nickel Phosphide Nanosheet Arrays: An Efficient Bifunctional Electrocatalyst for Water Splitting

Pengyan Wang; Zonghua Pu; Yanhui Li; Lin Wu; Zhengkai Tu; Min Jiang; Zongkui Kou; Ibrahim Saana Amiinu; Shichun Mu

doi:10.1021/acsami.7b06305

Iron-Doped Nickel Phosphide Nanosheet Arrays: An Efficient Bifunctional Electrocatalyst for Water Splitting

Pengyan Wang
, Zonghua Pu
, Yanhui Li
, Lin Wu
, Zhengkai Tu
, Min Jiang
, Zongkui Kou
, Ibrahim Saana Amiinu
, Shichun Mu

Wuhan University of Technology

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

Abstract

Exploring efficient and earth-abundant electrocatalysts for water splitting is crucial for various renewable energy technologies. In this work, iron (Fe)-doped nickel phosphide (Ni₂P) nanosheet arrays supported on nickel foam (Ni_1.85Fe_0.15P NSAs/NF) are fabricated through a facile hydrothermal method, followed by phosphorization. The electrochemical analysis demonstrates that the Ni_1.85Fe_0.15P NSAs/NF electrode possesses high electrocatalytic activity for water splitting. In 1.0 M KOH, the Ni_1.85Fe_0.15P NSAs/NF electrode only needs overpotentials of 106 mV at 10 mA cm^-2 and 270 mV at 20 mA cm^-2 to drive the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively. Furthermore, the assembled two-electrode (Ni_1.85Fe_0.15P NSAs/NF∝Ni_1.85Fe_0.15P NSAs/NF) alkaline water electrolyzer can produce a current density of 10 mA cm^-2 at 1.61 V. Remarkably, it can maintain stable electrolysis over 20 h. Thus, this work undoubtedly offers a promising electrocatalyst for water splitting.

Original language	English
Pages (from-to)	26001-26007
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	9
Issue number	31
DOIs	https://doi.org/10.1021/acsami.7b06305
Publication status	Published - 9 Aug 2017
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

electrocatalysts
hydrogen evolution reaction
NiFeP nanosheet arrays
oxygen evolution reaction
water splitting

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10.1021/acsami.7b06305

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@article{6020856cfdc14de3b44bb5211e2de3a6,

title = "Iron-Doped Nickel Phosphide Nanosheet Arrays: An Efficient Bifunctional Electrocatalyst for Water Splitting",

abstract = "Exploring efficient and earth-abundant electrocatalysts for water splitting is crucial for various renewable energy technologies. In this work, iron (Fe)-doped nickel phosphide (Ni2P) nanosheet arrays supported on nickel foam (Ni1.85Fe0.15P NSAs/NF) are fabricated through a facile hydrothermal method, followed by phosphorization. The electrochemical analysis demonstrates that the Ni1.85Fe0.15P NSAs/NF electrode possesses high electrocatalytic activity for water splitting. In 1.0 M KOH, the Ni1.85Fe0.15P NSAs/NF electrode only needs overpotentials of 106 mV at 10 mA cm-2 and 270 mV at 20 mA cm-2 to drive the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively. Furthermore, the assembled two-electrode (Ni1.85Fe0.15P NSAs/NF∝Ni1.85Fe0.15P NSAs/NF) alkaline water electrolyzer can produce a current density of 10 mA cm-2 at 1.61 V. Remarkably, it can maintain stable electrolysis over 20 h. Thus, this work undoubtedly offers a promising electrocatalyst for water splitting.",

keywords = "electrocatalysts, hydrogen evolution reaction, NiFeP nanosheet arrays, oxygen evolution reaction, water splitting",

author = "Pengyan Wang and Zonghua Pu and Yanhui Li and Lin Wu and Zhengkai Tu and Min Jiang and Zongkui Kou and Amiinu, \{Ibrahim Saana\} and Shichun Mu",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = aug,

day = "9",

doi = "10.1021/acsami.7b06305",

language = "English",

volume = "9",

pages = "26001--26007",

journal = "ACS Applied Materials and Interfaces ",

issn = "1944-8244",

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}

TY - JOUR

T1 - Iron-Doped Nickel Phosphide Nanosheet Arrays

T2 - An Efficient Bifunctional Electrocatalyst for Water Splitting

AU - Wang, Pengyan

AU - Pu, Zonghua

AU - Li, Yanhui

AU - Wu, Lin

AU - Tu, Zhengkai

AU - Jiang, Min

AU - Kou, Zongkui

AU - Amiinu, Ibrahim Saana

AU - Mu, Shichun

PY - 2017/8/9

Y1 - 2017/8/9

N2 - Exploring efficient and earth-abundant electrocatalysts for water splitting is crucial for various renewable energy technologies. In this work, iron (Fe)-doped nickel phosphide (Ni2P) nanosheet arrays supported on nickel foam (Ni1.85Fe0.15P NSAs/NF) are fabricated through a facile hydrothermal method, followed by phosphorization. The electrochemical analysis demonstrates that the Ni1.85Fe0.15P NSAs/NF electrode possesses high electrocatalytic activity for water splitting. In 1.0 M KOH, the Ni1.85Fe0.15P NSAs/NF electrode only needs overpotentials of 106 mV at 10 mA cm-2 and 270 mV at 20 mA cm-2 to drive the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively. Furthermore, the assembled two-electrode (Ni1.85Fe0.15P NSAs/NF∝Ni1.85Fe0.15P NSAs/NF) alkaline water electrolyzer can produce a current density of 10 mA cm-2 at 1.61 V. Remarkably, it can maintain stable electrolysis over 20 h. Thus, this work undoubtedly offers a promising electrocatalyst for water splitting.

AB - Exploring efficient and earth-abundant electrocatalysts for water splitting is crucial for various renewable energy technologies. In this work, iron (Fe)-doped nickel phosphide (Ni2P) nanosheet arrays supported on nickel foam (Ni1.85Fe0.15P NSAs/NF) are fabricated through a facile hydrothermal method, followed by phosphorization. The electrochemical analysis demonstrates that the Ni1.85Fe0.15P NSAs/NF electrode possesses high electrocatalytic activity for water splitting. In 1.0 M KOH, the Ni1.85Fe0.15P NSAs/NF electrode only needs overpotentials of 106 mV at 10 mA cm-2 and 270 mV at 20 mA cm-2 to drive the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively. Furthermore, the assembled two-electrode (Ni1.85Fe0.15P NSAs/NF∝Ni1.85Fe0.15P NSAs/NF) alkaline water electrolyzer can produce a current density of 10 mA cm-2 at 1.61 V. Remarkably, it can maintain stable electrolysis over 20 h. Thus, this work undoubtedly offers a promising electrocatalyst for water splitting.

KW - electrocatalysts

KW - hydrogen evolution reaction

KW - NiFeP nanosheet arrays

KW - oxygen evolution reaction

KW - water splitting

UR - https://www.scopus.com/pages/publications/85027260242

U2 - 10.1021/acsami.7b06305

DO - 10.1021/acsami.7b06305

M3 - Article

C2 - 28714664

AN - SCOPUS:85027260242

SN - 1944-8244

VL - 9

SP - 26001

EP - 26007

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 31

ER -

Iron-Doped Nickel Phosphide Nanosheet Arrays: An Efficient Bifunctional Electrocatalyst for Water Splitting

Abstract

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Keywords

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