TY - JOUR
T1 - Nanostructured Fe-Ni Sulfide : 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, Steven J.
AU - Baker, Mark
AU - Constantinides, Georgios
AU - Polychronopoulou, Kyriaki
AU - Rebholz, Claus
AU - Gupta, Ram K.
N1 - Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Tarticle distributed under the terms and conditions of the Cre.
PY - 2019/7/11
Y1 - 2019/7/11
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/cm
2, while it required 208 mV at 10 mA/cm
2 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 IrO
2-Pt/C system (1.56 V) to achieve a current density of 10 mA/cm
2 . Furthermore, the FeNiS electrode demonstrated promising charge storage capabilities with a high areal capacitance of 13.2 F/cm
2 . 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/cm
2, while it required 208 mV at 10 mA/cm
2 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 IrO
2-Pt/C system (1.56 V) to achieve a current density of 10 mA/cm
2 . Furthermore, the FeNiS electrode demonstrated promising charge storage capabilities with a high areal capacitance of 13.2 F/cm
2 . Our results suggest that FeNiS could be used for multifunctional energy applications such as energy generation (OER and HER) and storage (supercapacitor).
UR - http://www.scopus.com/inward/record.url?scp=85070021852&partnerID=8YFLogxK
U2 - 10.3390/catal9070597
DO - 10.3390/catal9070597
M3 - Article
SN - 2073-4344
VL - 9.2019
JO - Catalysts : open access journal
JF - Catalysts : open access journal
IS - 7
M1 - 597
ER -