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Nanostructured Fe-Ni Sulfide: A Multifunctional Material for Energy Generation and Storage
- Source :
- Catalysts; Volume 9; Issue 7; Pages: 597, Catalysts, Catalysts, Vol 9, Iss 7, p 597 (2019)
- Publication Year :
- 2019
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2019.
-
Abstract
- This article belongs to the Special Issue Catalysis for Energy Production 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).
- Subjects :
- Materials science
Sulfide
FeNiS
02 engineering and technology
Overpotential
lcsh:Chemical technology
010402 general chemistry
Electrocatalyst
01 natural sciences
Catalysis
law.invention
lcsh:Chemistry
law
Energy transformation
electrocatalyst
lcsh:TP1-1185
supercapacitor
Physical and Theoretical Chemistry
chemistry.chemical_classification
Supercapacitor
Electrolysis
Oxygen evolution
cyclic voltammetry
cyclic stability
flexibility
Materials Engineering
021001 nanoscience & nanotechnology
0104 chemical sciences
lcsh:QD1-999
chemistry
Chemical engineering
Engineering and Technology
Cyclic voltammetry
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 20734344
- Database :
- OpenAIRE
- Journal :
- Catalysts; Volume 9; Issue 7; Pages: 597
- Accession number :
- edsair.doi.dedup.....3b8b0ede128ecbadefb5161da2666312
- Full Text :
- https://doi.org/10.3390/catal9070597