Nickel nitride as an efficient electrocatalyst for water splitting

Menny Shalom; Debora Ressnig; Xiaofei Yang; Guylhaine Clavel; Tim Patrick Fellinger; Markus Antonietti

doi:10.1039/c5ta00078e

Nickel nitride as an efficient electrocatalyst for water splitting

Menny Shalom, Debora Ressnig, Xiaofei Yang, Guylhaine Clavel, Tim Patrick Fellinger, Markus Antonietti

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

405 Scopus citations

Abstract

Efficient, robust and low cost materials as electrocatalysts for energy-related applications are highly desired for the future of renewable energy production. Here we show a simple method to fabricate nickel nitride (Ni₃N) on nickel (Ni) foam for electrocatalytic applications. The Ni₃N/Ni-foam exhibits extremely low overpotential (∼50 mV), high current density and excellent stability for the hydrogen evolution reaction (HER) in alkaline solution. In addition, the modified foam demonstrates enhanced activity in the oxygen evolution (OER) and reduction (ORR) reaction compared to original Ni-foam. The activity enhancement can be attributed to the facile formation of a Ni(OH)₂ layer on the nitride layer due to improved lattice matching. The formation of the Ni₃N/Ni(OH)₂ catalyst results in lower overpotentials due to easier water dissociation on the nickel hydroxide layer. In addition, the HER is further improved due to stronger adsorption of hydrogen to the metal nitride than to the pure metal. We believe that the utilization of nickel nitride as an electrocatalyst opens opportunities for energy-related devices such as batteries and fuel cells.

Original language	English
Pages (from-to)	8171-8177
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	3
Issue number	15
DOIs	https://doi.org/10.1039/c5ta00078e
State	Published - 21 Apr 2015
Externally published	Yes

ASJC Scopus subject areas

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

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10.1039/c5ta00078e

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title = "Nickel nitride as an efficient electrocatalyst for water splitting",

abstract = "Efficient, robust and low cost materials as electrocatalysts for energy-related applications are highly desired for the future of renewable energy production. Here we show a simple method to fabricate nickel nitride (Ni3N) on nickel (Ni) foam for electrocatalytic applications. The Ni3N/Ni-foam exhibits extremely low overpotential (∼50 mV), high current density and excellent stability for the hydrogen evolution reaction (HER) in alkaline solution. In addition, the modified foam demonstrates enhanced activity in the oxygen evolution (OER) and reduction (ORR) reaction compared to original Ni-foam. The activity enhancement can be attributed to the facile formation of a Ni(OH)2 layer on the nitride layer due to improved lattice matching. The formation of the Ni3N/Ni(OH)2 catalyst results in lower overpotentials due to easier water dissociation on the nickel hydroxide layer. In addition, the HER is further improved due to stronger adsorption of hydrogen to the metal nitride than to the pure metal. We believe that the utilization of nickel nitride as an electrocatalyst opens opportunities for energy-related devices such as batteries and fuel cells.",

author = "Menny Shalom and Debora Ressnig and Xiaofei Yang and Guylhaine Clavel and Fellinger, {Tim Patrick} and Markus Antonietti",

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T1 - Nickel nitride as an efficient electrocatalyst for water splitting

AU - Shalom, Menny

AU - Ressnig, Debora

AU - Yang, Xiaofei

AU - Clavel, Guylhaine

AU - Fellinger, Tim Patrick

AU - Antonietti, Markus

PY - 2015/4/21

Y1 - 2015/4/21

N2 - Efficient, robust and low cost materials as electrocatalysts for energy-related applications are highly desired for the future of renewable energy production. Here we show a simple method to fabricate nickel nitride (Ni3N) on nickel (Ni) foam for electrocatalytic applications. The Ni3N/Ni-foam exhibits extremely low overpotential (∼50 mV), high current density and excellent stability for the hydrogen evolution reaction (HER) in alkaline solution. In addition, the modified foam demonstrates enhanced activity in the oxygen evolution (OER) and reduction (ORR) reaction compared to original Ni-foam. The activity enhancement can be attributed to the facile formation of a Ni(OH)2 layer on the nitride layer due to improved lattice matching. The formation of the Ni3N/Ni(OH)2 catalyst results in lower overpotentials due to easier water dissociation on the nickel hydroxide layer. In addition, the HER is further improved due to stronger adsorption of hydrogen to the metal nitride than to the pure metal. We believe that the utilization of nickel nitride as an electrocatalyst opens opportunities for energy-related devices such as batteries and fuel cells.

AB - Efficient, robust and low cost materials as electrocatalysts for energy-related applications are highly desired for the future of renewable energy production. Here we show a simple method to fabricate nickel nitride (Ni3N) on nickel (Ni) foam for electrocatalytic applications. The Ni3N/Ni-foam exhibits extremely low overpotential (∼50 mV), high current density and excellent stability for the hydrogen evolution reaction (HER) in alkaline solution. In addition, the modified foam demonstrates enhanced activity in the oxygen evolution (OER) and reduction (ORR) reaction compared to original Ni-foam. The activity enhancement can be attributed to the facile formation of a Ni(OH)2 layer on the nitride layer due to improved lattice matching. The formation of the Ni3N/Ni(OH)2 catalyst results in lower overpotentials due to easier water dissociation on the nickel hydroxide layer. In addition, the HER is further improved due to stronger adsorption of hydrogen to the metal nitride than to the pure metal. We believe that the utilization of nickel nitride as an electrocatalyst opens opportunities for energy-related devices such as batteries and fuel cells.

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DO - 10.1039/c5ta00078e

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JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

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ER -

Nickel nitride as an efficient electrocatalyst for water splitting

Abstract

ASJC Scopus subject areas

UN SDGs

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