Nanostructured fe-ni sulfide: A multifunctional material for energy generation and storage

Chen Zhao; Chunyang Zhang; Sanket Bhoyate; Pawan K. Kahol; Nikolaos Kostoglou; Christian Mitterer; Steve Hinder; Mark Baker; Georgios Constantinides; Kyriaki Polychronopoulou; Claus Rebholz; Ram K. Gupta

doi:10.3390/catal9070597

Nanostructured fe-ni sulfide: A multifunctional material for energy generation and storage

Chen Zhao
, Chunyang Zhang
, Sanket Bhoyate
, Pawan K. Kahol
, Nikolaos Kostoglou
, Christian Mitterer
, Steve Hinder
, Mark Baker
, Georgios Constantinides
, Kyriaki Polychronopoulou
, Claus Rebholz
, Ram K. Gupta

Mechanical & Nuclear Engineering

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

25 Scopus citations

Abstract

Multifunctional materials for energy conversion and storage could act as a key solution for growing energy needs. In this study, we synthesized nanoflower-shaped iron-nickel sulfide (FeNiS) over a nickel foam (NF) substrate using a facile hydrothermal method. The FeNiS electrode showed a high catalytic performance with a low overpotential value of 246 mV for the oxygen evolution reaction (OER) to achieve a current density of 10 mA/cm², while it required 208 mV at 10 mA/cm² for the hydrogen evolution reaction (HER). The synthesized electrode exhibited a durable performance of up to 2000 cycles in stability and bending tests. The electrolyzer showed a lower cell potential requirement for a FeNiS-Pt/C system (1.54 V) compared to a standard benchmark IrO₂-Pt/C system (1.56 V) to achieve a current density of 10 mA/cm² . Furthermore, the FeNiS electrode demonstrated promising charge storage capabilities with a high areal capacitance of 13.2 F/cm² . Our results suggest that FeNiS could be used for multifunctional energy applications such as energy generation (OER and HER) and storage (supercapacitor).

Original language	British English
Article number	597
Journal	Catalysts
Volume	9
Issue number	7
DOIs	https://doi.org/10.3390/catal9070597
State	Published - Jul 2019

Keywords

Cyclic stability
Cyclic voltammetry
Electrocatalyst
FeNiS
Flexibility
Supercapacitor

UN SDGs

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

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10.3390/catal9070597

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title = "Nanostructured fe-ni sulfide: A multifunctional material for energy generation and storage",

abstract = "Multifunctional materials for energy conversion and storage could act as a key solution for growing energy needs. In this study, we synthesized nanoflower-shaped iron-nickel sulfide (FeNiS) over a nickel foam (NF) substrate using a facile hydrothermal method. The FeNiS electrode showed a high catalytic performance with a low overpotential value of 246 mV for the oxygen evolution reaction (OER) to achieve a current density of 10 mA/cm2, while it required 208 mV at 10 mA/cm2 for the hydrogen evolution reaction (HER). The synthesized electrode exhibited a durable performance of up to 2000 cycles in stability and bending tests. The electrolyzer showed a lower cell potential requirement for a FeNiS-Pt/C system (1.54 V) compared to a standard benchmark IrO2-Pt/C system (1.56 V) to achieve a current density of 10 mA/cm2 . Furthermore, the FeNiS electrode demonstrated promising charge storage capabilities with a high areal capacitance of 13.2 F/cm2 . Our results suggest that FeNiS could be used for multifunctional energy applications such as energy generation (OER and HER) and storage (supercapacitor).",

keywords = "Cyclic stability, Cyclic voltammetry, Electrocatalyst, FeNiS, Flexibility, Supercapacitor",

author = "Chen Zhao and Chunyang Zhang and Sanket Bhoyate and Kahol, \{Pawan K.\} and Nikolaos Kostoglou and Christian Mitterer and Steve Hinder and Mark Baker and Georgios Constantinides and Kyriaki Polychronopoulou and Claus Rebholz and Gupta, \{Ram K.\}",

note = "Funding Information: Funding: This research received no external funding. The APC was funded by the Abu Dhabi Education and Knowledge (ADEK) Department, Award for Research Excellence, AARE 2017. Publisher Copyright: {\textcopyright} 2019 by the authors. Licensee MDPI, Basel, Switzerland. Tarticle distributed under the terms and conditions of the Cre.",

year = "2019",

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doi = "10.3390/catal9070597",

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volume = "9",

journal = "Catalysts",

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T1 - Nanostructured fe-ni sulfide

T2 - A multifunctional material for energy generation and storage

AU - Zhao, Chen

AU - Zhang, Chunyang

AU - Bhoyate, Sanket

AU - Kahol, Pawan K.

AU - Kostoglou, Nikolaos

AU - Mitterer, Christian

AU - Hinder, Steve

AU - Baker, Mark

AU - Constantinides, Georgios

AU - Polychronopoulou, Kyriaki

AU - Rebholz, Claus

AU - Gupta, Ram K.

N1 - Funding Information: Funding: This research received no external funding. The APC was funded by the Abu Dhabi Education and Knowledge (ADEK) Department, Award for Research Excellence, AARE 2017. Publisher Copyright: © 2019 by the authors. Licensee MDPI, Basel, Switzerland. Tarticle distributed under the terms and conditions of the Cre.

PY - 2019/7

Y1 - 2019/7

N2 - Multifunctional materials for energy conversion and storage could act as a key solution for growing energy needs. In this study, we synthesized nanoflower-shaped iron-nickel sulfide (FeNiS) over a nickel foam (NF) substrate using a facile hydrothermal method. The FeNiS electrode showed a high catalytic performance with a low overpotential value of 246 mV for the oxygen evolution reaction (OER) to achieve a current density of 10 mA/cm2, while it required 208 mV at 10 mA/cm2 for the hydrogen evolution reaction (HER). The synthesized electrode exhibited a durable performance of up to 2000 cycles in stability and bending tests. The electrolyzer showed a lower cell potential requirement for a FeNiS-Pt/C system (1.54 V) compared to a standard benchmark IrO2-Pt/C system (1.56 V) to achieve a current density of 10 mA/cm2 . Furthermore, the FeNiS electrode demonstrated promising charge storage capabilities with a high areal capacitance of 13.2 F/cm2 . Our results suggest that FeNiS could be used for multifunctional energy applications such as energy generation (OER and HER) and storage (supercapacitor).

AB - Multifunctional materials for energy conversion and storage could act as a key solution for growing energy needs. In this study, we synthesized nanoflower-shaped iron-nickel sulfide (FeNiS) over a nickel foam (NF) substrate using a facile hydrothermal method. The FeNiS electrode showed a high catalytic performance with a low overpotential value of 246 mV for the oxygen evolution reaction (OER) to achieve a current density of 10 mA/cm2, while it required 208 mV at 10 mA/cm2 for the hydrogen evolution reaction (HER). The synthesized electrode exhibited a durable performance of up to 2000 cycles in stability and bending tests. The electrolyzer showed a lower cell potential requirement for a FeNiS-Pt/C system (1.54 V) compared to a standard benchmark IrO2-Pt/C system (1.56 V) to achieve a current density of 10 mA/cm2 . Furthermore, the FeNiS electrode demonstrated promising charge storage capabilities with a high areal capacitance of 13.2 F/cm2 . Our results suggest that FeNiS could be used for multifunctional energy applications such as energy generation (OER and HER) and storage (supercapacitor).

KW - Cyclic stability

KW - Cyclic voltammetry

KW - Electrocatalyst

KW - FeNiS

KW - Flexibility

KW - Supercapacitor

UR - https://www.scopus.com/pages/publications/85070021852

U2 - 10.3390/catal9070597

DO - 10.3390/catal9070597

M3 - Article

AN - SCOPUS:85070021852

SN - 2073-4344

VL - 9

JO - Catalysts

JF - Catalysts

IS - 7

M1 - 597

ER -

Nanostructured fe-ni sulfide: A multifunctional material for energy generation and storage

Abstract

Keywords

UN SDGs

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