Surface Morphology and Crystallographic Orientation of Electrodeposited Iron Films

Inoue, Koichiro; Nakata, Takeshi; Watanabe, Tohru

doi:10.2320/matertrans.43.1318

Cited by 19 publications

(9 citation statements)

References 14 publications

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“…As shown, the cathodic current starts to increase rapidly below −0.20 V versus Fe 2+ /Fe, which indicates Fe plating, where Fe plating entails an overpotential to surmount the energy barrier of the Fe 2+ dehydration, Fe absorption, and Fe nucleation 7a,b. During the anodic scan, the Fe 2+ stripping process is associated with a smaller overpotential of 0.05 V due to a faster reaction kinetics 7a,b. Thus, the overall polarization of Fe plating and stripping is ≈0.25 V, which is higher than the Zn metal in ZnSO 4 electrolytes (Figure S3, Supporting Information).…”

Section: Resultsmentioning

confidence: 87%

“…Figure shows typical cyclic voltammetry (CV) curves of Fe plating/stripping in a three‐electrode cell, where Cu foil, Fe metal, and Fe metal serve as the working electrode, counter electrode, and reference electrode, respectively. As shown, the cathodic current starts to increase rapidly below −0.20 V versus Fe 2+ /Fe, which indicates Fe plating, where Fe plating entails an overpotential to surmount the energy barrier of the Fe 2+ dehydration, Fe absorption, and Fe nucleation 7a,b. During the anodic scan, the Fe 2+ stripping process is associated with a smaller overpotential of 0.05 V due to a faster reaction kinetics 7a,b.…”

Section: Resultsmentioning

confidence: 91%

“…Second, iron possesses attractive electrochemical properties. Via the two‐electron transfer, iron theoretically delivers a high specific capacity of ≈960 mAh g −1 and an outstanding volumetric capacity of ≈7557 mAh cm −3 , both of which are higher than zinc anode . Its redox potential of − 0.44 V versus SHE is 0.3 V higher than zinc, which, in theory, renders better stability in aqueous electrolytes .…”

Section: Introductionmentioning

confidence: 99%

“…Via the two‐electron transfer, iron theoretically delivers a high specific capacity of ≈960 mAh g −1 and an outstanding volumetric capacity of ≈7557 mAh cm −3 , both of which are higher than zinc anode . Its redox potential of − 0.44 V versus SHE is 0.3 V higher than zinc, which, in theory, renders better stability in aqueous electrolytes . For comparison, Table 1 lists key characteristics of iron, zinc, manganese, nickel, and copper metals .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Rechargeable Battery with an Iron Metal Anode

Wei

Markir

et al. 2019

Adv Funct Materials

107

118

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To date, tremendous efforts of the battery community are devoted to batteries that employ Li + , Na + , and K + as charge carriers and nonaqueous electrolytes. However, aqueous batteries hold great promise for stationary energy storage due to their inherent low cost and high safety. Among metal batteries that use aqueous electrolytes, zinc metal batteries are the focus of attention. In this study, iron as an anode candidate in aqueous batteries is investigated because iron is undoubtedly the most earth-abundant and cost-effective metal anode. Reversible iron plating/stripping in a FeSO 4 electrolyte is demonstrated on the anode side and reversible topotactic (de)insertion of Fe 2+ in a Prussian blue analogue cathode is showcased. Furthermore, it is revealed that LiFePO 4 can pair up with the iron metal anode in a hybrid cell, delivering stable performance as well.

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Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Rechargeable Battery with an Iron Metal Anode

Wei

Markir

et al. 2019

Adv Funct Materials

107

118

View full text Add to dashboard Cite

show abstract

“…At i = 300 mA cm −2 , the coating is non-uniform and some parts of the specimen are not coated. The surface roughness coating obtained by electrodeposition is changed with an over-potential [24][25][26]. Indeed, the surface roughness is high at low over-potentials and becomes lower at high over-potentials.…”

Section: Effect Of Current Densitymentioning

confidence: 99%

Influence of electrodeposition parameters on the characteristics of Mn–Co coatings on Crofer 22 APU ferritic stainless steel

Ebrahimifar

Zandrahimi

2017

Bull Mater Sci

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Manganese-cobalt coatings are promising candidates for solid oxide fuel cell (SOFC) interconnection applications because of their high conductivity and good oxidation resistance. In the present study, manganese and cobalt are electrodeposited on Crofer 22 APU ferritic stainless steel. The effects of current density, pH, sodium gluconate (NaC 6 H 11 O 7) concentration, cobalt sulphate concentration (CoSO 4 •7H 2 O) and deposition duration on the microstructure and cathodic efficiency are characterized by means of scanning electron microscopy, weight gain measurements and energy-dispersive X-ray spectrometry, respectively. Results show that increases in current density and deposition duration lead to decrease in current efficiency and deposition rate. Increasing the pH to 2.5 causes an initial rise of current efficiency and deposition rate, followed by subsequent decline. In addition, the increases in sodium gluconate and cobalt sulphate concentrations in the electrolyte solution result in an increase in current efficiency and deposition rate. Moreover, the results demonstrate that the variations in the current density, pH, sodium gluconate (NaC 6 H 11 O 7) concentration, cobalt sulphate concentration (CoSO 4 •7H 2 O) and duration have a significant effect on grain size, uniformity and the adherence of the coating.

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Iron anode‐based aqueous electrochemical energy storage devices: Recent advances and future perspectives

Jiang

Liu

2022

Interdisciplinary Materials

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The ever-growing demands for green and sustainable power sources for applications in grid-scale energy storage and portable/wearable devices have enabled the continual development of advanced aqueous electrochemical energy storage (EES) systems. Aqueous batteries and supercapacitors made of iron-based anodes are one of the most promising options due to the remarkable electrochemical features and natural abundance, pretty low cost and good environmental friendliness of ferruginous species. Though impressive advances in developing the state-of-the-art ferruginous anodes and designing various full-cell aqueous devices have been made, there still remain key issues and challenges on the way to practical applications, which urgently need discussing to put forwards possible solutions. In this review, rather than focusing on the detailed methods to optimize the iron anode, electrolyte, and device performance, we first give a comprehensive review on the charge storage mechanisms for ferruginous anodes in different electrolyte systems, as well as the newly developed iron-based aqueous EES devices. The deep insights, involving the inherent failure mechanisms and corresponding modification/optimization strategies toward iron anodes for the development of high-performance aqueous EES devices, will then be discussed. The advances in applying iron-based aqueous EES devices for emerging fields such as flexible/wearable electronics and functionalized building materials will be further outlined. Last, future research trends and perspectives for maximizing the potential of current iron anodes and devices as well as exploiting brandnew iron-based aqueous EES systems are put forward.

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Surface Morphology and Crystallographic Orientation of Electrodeposited Iron Films

Cited by 19 publications

References 14 publications

A Rechargeable Battery with an Iron Metal Anode

A Rechargeable Battery with an Iron Metal Anode

Influence of electrodeposition parameters on the characteristics of Mn–Co coatings on Crofer 22 APU ferritic stainless steel

Iron anode‐based aqueous electrochemical energy storage devices: Recent advances and future perspectives

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