Preparation of a bifunctional ultrathin nickel phosphide nanosheet electrocatalyst for full water splitting

Nouraiz Mushtaq; Chen Qiao; Hassina Tabassum; Muhammad Naveed; Muhammad Tahir; Youqi Zhu; Muhammad Naeem; Waqar Younas; Chuanbao Cao

doi:10.1039/d0se00893a

Preparation of a bifunctional ultrathin nickel phosphide nanosheet electrocatalyst for full water splitting

Nouraiz Mushtaq, Chen Qiao, Hassina Tabassum, Muhammad Naveed, Muhammad Tahir, Youqi Zhu, Muhammad Naeem, Waqar Younas, Chuanbao Cao^*

^*Corresponding author for this work

School of Material Science and Engineering

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

19 Citations (Scopus)

Abstract

Developing a noble-metal-free robust and effective electrocatalyst with enhanced active sites for overall water splitting is of great significance yet challenging. Here we demonstrate a bifunctional ultrathin Ni₂P nanosheet electrocatalyst through a microwave-assisted method and phosphorization process. The as-prepared Ni₂P nanosheets present low overpotentials (η₁₀) of 96 and 255 mV for the hydrogen evolution reaction (HER) and oxygen evolution (OER) at a current density of 10 mA cm⁻²in a basic medium. Remarkably, the overall water splitting electrolyzer exhibits a low cell voltage of 1.47 V to achieve a current density of 10 mA cm⁻²in 1 M KOH with outstanding stability. Our facile and unique synthetic protocol and highly active material will open the avenue for further application of water splitting devices.

Original language	English
Pages (from-to)	5294-5300
Number of pages	7
Journal	Sustainable Energy and Fuels
Volume	4
Issue number	10
DOIs	https://doi.org/10.1039/d0se00893a
Publication status	Published - Oct 2020

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abstract = "Developing a noble-metal-free robust and effective electrocatalyst with enhanced active sites for overall water splitting is of great significance yet challenging. Here we demonstrate a bifunctional ultrathin Ni2P nanosheet electrocatalyst through a microwave-assisted method and phosphorization process. The as-prepared Ni2P nanosheets present low overpotentials (η10) of 96 and 255 mV for the hydrogen evolution reaction (HER) and oxygen evolution (OER) at a current density of 10 mA cm−2in a basic medium. Remarkably, the overall water splitting electrolyzer exhibits a low cell voltage of 1.47 V to achieve a current density of 10 mA cm−2in 1 M KOH with outstanding stability. Our facile and unique synthetic protocol and highly active material will open the avenue for further application of water splitting devices.",

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T1 - Preparation of a bifunctional ultrathin nickel phosphide nanosheet electrocatalyst for full water splitting

AU - Mushtaq, Nouraiz

AU - Qiao, Chen

AU - Tabassum, Hassina

AU - Naveed, Muhammad

AU - Tahir, Muhammad

AU - Zhu, Youqi

AU - Naeem, Muhammad

AU - Younas, Waqar

AU - Cao, Chuanbao

PY - 2020/10

Y1 - 2020/10

N2 - Developing a noble-metal-free robust and effective electrocatalyst with enhanced active sites for overall water splitting is of great significance yet challenging. Here we demonstrate a bifunctional ultrathin Ni2P nanosheet electrocatalyst through a microwave-assisted method and phosphorization process. The as-prepared Ni2P nanosheets present low overpotentials (η10) of 96 and 255 mV for the hydrogen evolution reaction (HER) and oxygen evolution (OER) at a current density of 10 mA cm−2in a basic medium. Remarkably, the overall water splitting electrolyzer exhibits a low cell voltage of 1.47 V to achieve a current density of 10 mA cm−2in 1 M KOH with outstanding stability. Our facile and unique synthetic protocol and highly active material will open the avenue for further application of water splitting devices.

AB - Developing a noble-metal-free robust and effective electrocatalyst with enhanced active sites for overall water splitting is of great significance yet challenging. Here we demonstrate a bifunctional ultrathin Ni2P nanosheet electrocatalyst through a microwave-assisted method and phosphorization process. The as-prepared Ni2P nanosheets present low overpotentials (η10) of 96 and 255 mV for the hydrogen evolution reaction (HER) and oxygen evolution (OER) at a current density of 10 mA cm−2in a basic medium. Remarkably, the overall water splitting electrolyzer exhibits a low cell voltage of 1.47 V to achieve a current density of 10 mA cm−2in 1 M KOH with outstanding stability. Our facile and unique synthetic protocol and highly active material will open the avenue for further application of water splitting devices.

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JO - Sustainable Energy and Fuels

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ER -

Preparation of a bifunctional ultrathin nickel phosphide nanosheet electrocatalyst for full water splitting

Abstract

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