Growth of ZnO nanoflowers: effects of anodization time and substrate roughness on structural, morphological, and wetting properties

Yavaş, Ahmet; Güler, Saadet; Erol, Mustafa

doi:10.1007/s41779-019-00440-5

Cited by 17 publications

(11 citation statements)

References 30 publications

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“…21 However, the use of these foils as a standard anode relies on the, somewhat unsubstantiated, assumption that Zn foils are consistent in structure and chemistry between suppliers or batches. 22 In fact, the surface properties of as-received Zn foil will vary greatly depending on its preparation method, roughness, presence of surface oxides/carbonates and more. 23 This is a particular problem as it is known that metal electrodeposition is inuenced by surface structure.…”

Section: Introductionmentioning

confidence: 99%

Dendrite suppression by anode polishing in zinc-ion batteries

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Dendrite suppression by anode polishing in zinc-ion batteries

et al. 2021

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“…2a and 2b for sample groups 1 and 2, respectively. It was observed from these patterns, the samples were mixed form of metallic Zn and wurtzite phases as marked with 1 and 2 for Zn (ICDD 03-065-5973) and wurtzite (ICDD 00-036-1451), respectively [1]. Note that the peaks (1) metallic Zn were arised from Zn substrates in all patterns.…”

Section: Structural Analysismentioning

confidence: 77%

“…The metal oxide semiconductors (ZnO, TiO2, Fe2O3, CuO, NiO, etc. ), have favorable properties that desired in a variety of applications [1]. One of these applications is photocatalysis and some semiconductors, such as TiO2 and ZnO, are heavily utilized for the degradation of environmental contaminants [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…This process has gained much attention after demonstration of two-step approach by Masuda and Fukuda in 1995 [27]. The oxidizing of a surface of an anode metal is provided through electrochemical anodization method, in a specific electrolyte under a specific voltage at room temperature, resulting in the formation of various nanostructured materials e.g., nanoporous-like structures, nanoflakes, nanoflowers, nanoneedles and NWs [1,28,29]. It is obvious that bicarbonate solutions are very popular electrolytes for anodizing of Zn to obtain ZnO NWs [30].…”

Section: Introductionmentioning

confidence: 99%

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A comparative study on structural, morphological and photocatalytic properties of anodically grown ZnO nanowires under varying parameters

Ozdemir

Kartal

Dikici

et al. 2021

J Mater Sci: Mater Electron

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In this study, Zinc oxide (ZnO) nanowires (NWs) were successfully produced on Zn plates through electrochemical anodization in potassium bicarbonate aqueous electrolytes with different production parameters in two groups as applied voltage and anodization time.Subsequently, the ZnO NWs were annealed at 300 ℃ for 1 h in air atmosphere to increase crystallinity and remove organic residues. Structural and morphological properties were determined through X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis. The effect of anodization parameters on the structure of ZnO NWs and thus their photocatalytic activities were evaluated in detail by UV spectrophotometer. The results pointed out that, the most effective nanostructure on the photocatalytic degradation of methylene blue was obtained at the sample anodized under 30 V for 30 min at room temperature with 90.6% degradation efficiency among the samples. This result shows that the NW structured ZnO materials are promising to be used as effective photocatalysts in the removal of organic pollutants by solar energy and their conversion to green compounds.

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“…As the anodization time increased, the morphology of the anodic films was transformed gradually from discrete nanoflower-like structures to a uniform film of aligned nanowires [Figure 7]. Numerous follow-up studies further revealed that the nanowire length and diameter and density of the nanoflower-like structures were directly proportional to the anodization time [149][150][151][152][153][154] . In addition, nanowires can be grown at a rather high rate (~1.3 μm min -1 ) [149][150][151][152][153][154] in an aqueous KHCO 3 solution.…”

Section: Nanoneedles Nanorods Nanowires and Nanotubesmentioning

confidence: 99%

Anodization fabrication techniques and energy-related applications for nanostructured anodic films on transition metals

2022

Energy Mater

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Nanostructured anodic films on transition metals prepared using the electrochemical anodization method have recently attracted particular attention owing to their extraordinary properties and potential use in a variety of applications. Herein, we provide a thorough review of the anodization fabrication of anodic films with different nanostructures, including nanopores, nanotubes, nanoflowers, nanoneedles and nanowires on transition metals, focusing on the growth processes of nanostructured anodic films on three representative transition metals, namely, iron, copper and zinc. Specific consideration is given to the anodization behavior and formed film nanostructures of these transition metals. We conclude that electrolyte composition plays a key role in influencing the final morphologies of anodic films. Fluoride-containing solutions represent universal electrolytes for forming nanostructured anodic films on transition metals. The main applications of the resulting nanostructured anodic films, especially in energy-related fields, such as photoelectrochemical water splitting and supercapacitors, are also presented and discussed. Finally, we indicate the main challenges associated with the fabrication of anodic films with highly ordered nanostructures and the potential future directions of this field are indicated.

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Growth of ZnO nanoflowers: effects of anodization time and substrate roughness on structural, morphological, and wetting properties

Cited by 17 publications

References 30 publications

Dendrite suppression by anode polishing in zinc-ion batteries

Dendrite suppression by anode polishing in zinc-ion batteries

A comparative study on structural, morphological and photocatalytic properties of anodically grown ZnO nanowires under varying parameters

Anodization fabrication techniques and energy-related applications for nanostructured anodic films on transition metals

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