Unravelling nanoporous anodic iron oxide formation

Martín‐González, Marisol; Martínez‐Moro, Rut; Aguirre, Myriam H.; Flores, Eduardo; Caballero-Calero, Olga

doi:10.1016/j.electacta.2019.135241

Cited by 14 publications

(6 citation statements)

References 32 publications

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“…Taking the formation mechanism of anodic TiO 2 nanotubes as an example, according to the traditional theory, the eld-assisted dissolution reaction (TiO 2 + 6F À + 4H + / [TiF 6 ] 2À + 2H 2 O) involving F À ions has always been considered as the root cause of the formation and growth of nanotubes. [6][7][8][9][10] Schmuki et al 10 believed that there should be a balance between oxide growth and dissolution during anodization. However, these theories cannot clarify the three stages of the current-time curve during anodization.…”

Section: Introductionmentioning

confidence: 99%

A phosphoric anion layer inhibits electronic current generation and nanotube growth during anodization of titanium

et al. 2022

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Section: Introductionmentioning

confidence: 99%

A phosphoric anion layer inhibits electronic current generation and nanotube growth during anodization of titanium

et al. 2022

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“…The amplification of the electric field driving force at higher voltage promotes ion migration through the oxide and expedites electrochemical reaction, resulting in larger inner diameters and longer lengths of nanotubes. [106,107] The length of nanotubes is also impacted by the duration of anodization. Over time, the growth rate of nanotubes experiences a decline until a state of equilibrium is achieved between the growth and chemical dissolution of the formed oxides.…”

Section: Other Anodizing Parametersmentioning

confidence: 99%

Recent Progress of Self‐Supported Metal Oxide Nano‐Porous Arrays in Energy Storage Applications

Gao

Wang

Cao

et al. 2023

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The demand for high‐performance and cost‐effective energy storage solutions for mobile electronic devices and electric vehicles has been a driving force for technological advancements. Among the various options available, transitional metal oxides (TMOs) have emerged as a promising candidates due to their exceptional energy storage capabilities and affordability. In particular, TMO nanoporous arrays fabricated by electrochemical anodization technique demonstrate unrivaled advantages including large specific surface area, short ion transport paths, hollow structures that reduce bulk expansion of materials, and so on, which have garnered significant research attention in recent decades. However, there is a lack of comprehensive reviews that discuss the progress of anodized TMO nanoporous arrays and their applications in energy storage. Therefore, this review aims to provide a systematic detailed overview of recent advancements in understanding the ion storage mechanisms and behavior of self‐organized anodic TMO nanoporous arrays in various energy storage devices, including alkali metal ion batteries, Mg/Al‐ion batteries, Li/Na metal batteries, and supercapacitors. This review also explores modification strategies, redox mechanisms, and outlines future prospects for TMO nanoporous arrays in energy storage.

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“…Anodization of a large variety of metals have been previously successfully demonstrated. This includes titanium [ 29 ] and iron [ 30 ] for which anodized titanium oxide (ATiO) and anodized iron oxide (AFeO) are created on the metal surface. These anodized oxides have amorphous structure and often exhibit poor crystallinity.…”

Section: Introductionmentioning

confidence: 99%

Electrical Transport and Magnetic Properties of Metal/Metal Oxide/Metal Junctions Based on Anodized Metal Oxides

et al. 2021

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In this paper, we describe magnetoelectric properties of metal/metal-oxide/metal junctions based on anodized metal oxides. Specifically, we use Ti and Fe metallic layers separated by the porous metal-oxides of iron or titanium formed by the anodization method. Thus, we prepare double junctions with at least one ferromagnetic layer and measure magnetoresistance, as well as their current-voltage and magnetic characteristics. We find that magnetoresistance depends on that junction composition and discuss the nature of differential resistance calculated from I-V characteristics. Our findings show that a top metallic layer and the interface between this layer and anodized oxide, where strong interatomic diffusion is expected, have the strongest influence on this observed behavior.

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Unravelling nanoporous anodic iron oxide formation

Cited by 14 publications

References 32 publications

A phosphoric anion layer inhibits electronic current generation and nanotube growth during anodization of titanium

A phosphoric anion layer inhibits electronic current generation and nanotube growth during anodization of titanium

Recent Progress of Self‐Supported Metal Oxide Nano‐Porous Arrays in Energy Storage Applications

Electrical Transport and Magnetic Properties of Metal/Metal Oxide/Metal Junctions Based on Anodized Metal Oxides

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