Analysis of Electrodeposited Nickel-Iron Alloy Film Composition Using Particle-Induced X-Ray Emission

Frey, Alyssa A.; Wozniak, Nicholas; Nagi, Timothy B.; Keller, Matthew P.; Lunderberg, J. Mark; Peaslee, Graham F.; DeYoung, Paul; Hampton, Jennifer R.

doi:10.4061/2011/604395

Cited by 9 publications

(3 citation statements)

References 42 publications

(32 reference statements)

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“…Others were measured at multiple locations of the same sample to detect consistency of the sample across the area. These results are in agreement with previous research for these type of materials [42].…”

Section: X-ray Spectroscopic Sample Characterizationsupporting

confidence: 94%

Comparing electrochemical analysis and particle induced X-ray emission measurements of Prussian Blue Analogue deposits

2021

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Prussian Blue Analogues are of major interest for their use in alternative battery technologies due to their charge storing ability with a long life cycle. In this work the Prussian Blue Analogue nickel hexacyanoferrate (Ni-HCF) was produced using an all electrochemical method. Creating charge storing materials with electrochemical processes provides a new approach to the development of battery-like materials. These methods have not been commonly employed because the charge storing material yield is not directly known. The charge storage of the Ni-HCF was characterized with two different methods which provided a measure of the electrochemically active Fe present. These were then compared with the Particle Induced X-ray Emission (PIXE) method which measured the total amount of Fe present. By comparing the electrochemical measurement of active Fe to the total Fe as measured by PIXE, the percentage of material that is active in the charge storage was determined. This enables an independent calculation of the specific charge capacity of the material for comparison to other battery technologies.

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Section: X-ray Spectroscopic Sample Characterizationsupporting

confidence: 94%

Comparing electrochemical analysis and particle induced X-ray emission measurements of Prussian Blue Analogue deposits

2021

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“…In this experiment, the rate of Fe 2+ → Fe was faster than that of Ni 2+ → Ni. As a consequence, it is assumed that the composition of the more active Fe formed by the electrodeposition process was higher than that of Ni [34].…”

Section: These Reactions Explain the Physical Appearances Of The Obta...mentioning

confidence: 99%

Electrodeposition of nickel–iron on stainless steel as an efficient electrocatalyst coating for the oxygen evolution reaction in alkaline conditions

et al. 2022

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Significant amount of effort has been devoted in the development of water electrolysis technology as the prime technology for green hydrogen production. In this paper, we investigate nickel–iron-based electrocatalytic coatings on stainless-steel substrates for commercial alkaline water electrolysers. Stainless steel electrodes for water electrolysis have received attention lately, showing that they can be a low-cost substrate for water electrolysis. Coating stainless steel with low-cost electrocatalysts can prove beneficial to lower overpotential for the oxygen evolution reaction (OER), thereby reducing the overall energy consumption of water electrolysis at an affordable cost. We show that NiFe-deposited substrates have an overpotential of 514 mV at 10 mA cm−2 current. The substrates also exhibited excellent stability in strong alkaline condition for 60 h under continuous 1.2 V working potential vs SCE. The results in full-cell electrolysers demonstrate that the electrolyser with the NiFe-coated anode could generate nearly six times as much current density compared with the bare stainless-steel substrate. Graphical abstract

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“…The electrodeposition method can be carried out with a constant current or constant potential during the process [7]. The electrodeposition method using a constant current during the process is preferred because it can produce a more homogeneous thin film that is firmly attached to the substrate than that prepared with a constant potential during the process [8] [9]. In this paper, the Fe-Ni alloys were electrodeposited with various applied currents and deposition times from different electrolyte compositions.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Electrodeposition Current and Electrolyte Composition on Electrodeposition of Fe-Ni Alloys

Rofi

Paristiowati²

2022

Chem. Mater.

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This research was conducted to determine the effect of solution variations, electrical current, thickness, weight, metal composition, and the characteristics of the Fe-Ni alloy synthesized using the electrodeposition method. The instruments used in this study were atomic absorption spectroscopy (AAS) to determine the metal composition in the deposit, X-ray diffraction to determine the diffraction patterns, and scanning electron microscopy (SEM) to observe morphology and energy dispersive X-ray spectroscopy for elemental analysis. The SEM micrographs obtained showed that morphology of the Fe-Ni alloy was in the form of refined grains. The percentage of Fe in the deposit decreases with the increase in the used current. The AAS data also showed that a high Ni composition in solution will affect the atomic percent of each metal in the deposit. The formation of the alloy was confirmed by diffraction peaks at 2θ of 44°, 53°, and 76° that associated with reflection planes of the face centered cubic structure of Fe-Ni with the crystallite size range from 5 nm to 35 nm.

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Analysis of Electrodeposited Nickel-Iron Alloy Film Composition Using Particle-Induced X-Ray Emission

Cited by 9 publications

References 42 publications

Comparing electrochemical analysis and particle induced X-ray emission measurements of Prussian Blue Analogue deposits

Comparing electrochemical analysis and particle induced X-ray emission measurements of Prussian Blue Analogue deposits

Electrodeposition of nickel–iron on stainless steel as an efficient electrocatalyst coating for the oxygen evolution reaction in alkaline conditions

The Effect of Electrodeposition Current and Electrolyte Composition on Electrodeposition of Fe-Ni Alloys

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