Synthesis of Fe(OH)3 Microtubes at the Gas–Solution Interface and Their Use for the Fabrication of Fe2O3 and Fe Microtubes

Gulina, L. B.; Tolstoy, Valeri P.; Kuklo, L. I.; Mikhailovskii, Vladimir; Панчук, В. В.; Семенов, В. Г.

doi:10.1002/ejic.201800182

Cited by 11 publications

(6 citation statements)

References 52 publications

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“…As was shown in ref. , microtubes with roll morphology are formed after drying a thin gradient film in the air at room temperature. Thus, the main force inducing the rolling process of the film is due to different surface states, namely, to the composition and density gradient of the two film sides.…”

Section: Resultsmentioning

confidence: 99%

Formation of Fe and Fe₂O₃ Microspirals via Interfacial Synthesis

Gulina

Tolstoy

Lobinsky

et al. 2018

Part & Part Syst Charact

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A new method is reported for obtaining microspirals of iron‐based compounds by interfacial interaction. A thin film of Fe(OH)3 is obtained as a result of interaction between an aqueous solution of iron salts and gaseous ammonia. Upon drying, it is transformed into Fe(OH)3 microspirals with a diameter of up to 10 µm. These microspirals can be transformed into Fe2O3 microspirals by annealing in air. As a result of hydrogen reduction, Fe microspirals are formed. Both the annealing in air and that in hydrogen allow the retaining of the morphology. The material synthesized is characterized by electronic microscopy methods, X‐ray diffraction, diffuse reflectance Fourier transform infrared, and Mössbauer and photoelectron spectroscopies. The electrocatalytic properties of the electrode based on Fe2O3 microspirals as a catalyst of hydrogen evolution and the magnetic properties of Fe microspirals are tested. A hypothesis is proposed on the formation of microspirals by the gas–solution interface technique.

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Section: Resultsmentioning

confidence: 99%

Formation of Fe and Fe₂O₃ Microspirals via Interfacial Synthesis

Gulina

Tolstoy

Lobinsky

et al. 2018

Part & Part Syst Charact

Self Cite

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“…Fe(OH) 3 gradually decomposes with the increase in temperature; when the temperature reaches 500 °C, the Fe(OH) 3 completely decomposes into α-Fe 2 O 3 with a total weight loss of about 10.2 %. [38][39][40] In the S@FH composites sample, the material weight loss comprises the evaporation of sulfur and the decomposition of Fe(OH) 3 . Considering the weight loss of S@FH composites (61.9 %) and the established ratio (60 : 40) between sulfur and Fe(OH) 3 within the composites, it can be inferred that the final sulfur content of the S@FH composites is 57.82 %, (61.9 %À (10.2 %×40 %) = 57.82 %).…”

Section: Resultsmentioning

confidence: 99%

“…The curve for sulfur shows that the weight loss temperature ranges from 242 °C to 381 °C. Fe(OH) 3 gradually decomposes with the increase in temperature; when the temperature reaches 500 °C, the Fe(OH) 3 completely decomposes into α‐Fe 2 O 3 with a total weight loss of about 10.2 % [38–40] . In the S@FH composites sample, the material weight loss comprises the evaporation of sulfur and the decomposition of Fe(OH) 3 .…”

Section: Resultsmentioning

confidence: 99%

Flower‐like Fe(OH)₃ as Sulfur Hosts for High‐Performance Lithium–Sulfur Batteries

Wang,

Du,

et al. 2023

Eur J Inorg Chem

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Lithium‐sulfur batteries are considered one of the next generation potential candidates for electrochemical energy storage devices owing to their high energy density. However, their practical application presents several challenges that need to be addressed. In this study, a flower‐like Fe(OH)3 was obtained using a simple and environmentally friendly one‐step injection method, intended to be used as sulfur host in lithium‐sulfur batteries. The polar hydroxyl groups in Fe(OH)3 capture free polysulfides in the electrolyte via chemisorption and the unique structure of the material physically entraps polysulfides, thus preventing the shuttle effect. Benefiting from functional group and spatial shape advantages, the resultant S@FH electrode yielded an initial capacity of 1187.6 mAh g−1 at 0.1 C. When the batteries are tested for 100 cycles, the reversible capacity remained at 635.2 mAh g−1 and the coulomb efficiency was nearly 100 %.

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“…The nanoparticles' crystallite size was calculated using Debye Scherrer's formula [21]. Figure 9 shows the pattern of [ZnO: Fe2O3/ Eug]; there was more crystallinity of ZnO-Fe2O3 and different intensities of diffraction peaks [18], which matched with 01-080-0075 [22] and 01-084-0311 [23]. From Table 4, it can be concluded that the diffraction angles return to Fe2O3 and ZnO as individual elements.…”

Section: Atomic Force Microscopy (Afm)mentioning

confidence: 94%

Anti-Oxidant and Anti-Microbial Activities of [ZnO: CoO/ Eugenol] and [ZnO: Fe2O3/ Eugenol] Nanocomposites

Fatin A. Al-jubouri,

Basim I. Al-Abdaly

2024

IHJPAS

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Metal oxide nanocomposites (MONCs) manufacturing is increasingly gaining popularity. The primary cause of this is the broad range of applications for such materials, which include fuel cells, photovoltaics, cosmetics, medicine, semiconductor packing materials, water treatment, and catalysts. Due to their size, stability, high surface area, catalytic activity, simplicity in fabrication, and selectivity for particular reactions. The MONCs with various morphologies have been created by physical, chemical, and biological processes, such as sol-gel, hydrothermal, co-precipitation, solvothermal, and microwave irradiation. Eugenol (4-allyl-2-methoxyphenol) is a major component of clove essential oil and it was found in various plant groups, has been widely utilized, and famously stated to have a variety of important biological activities. It is a good starting material for the synthesis of a wide variety of derivatives with different activity. Due to the presence of many functional groups in its structure, including allyl (-CH2-CH=CH2), phenol (-OH), and methoxy (-OCH3). The eugenol was taken with metal oxides (zinc cobalt oxides ZnO: CoO) to synthesis [ZnO: CoO/ Eug] and (zinc ferric oxides ZnO: Fe2O3) to synthesis [ZnO: Fe2O3/ Eug] as nanocomposites by hydrothermal method and characterization the compounds using: (FT-IR, AFM, SEM, EDX, XRD) techniques. Then, they tested their biological activities through antimicrobial and antioxidant.

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Synthesis of Fe(OH)₃ Microtubes at the Gas–Solution Interface and Their Use for the Fabrication of Fe₂O₃ and Fe Microtubes

Cited by 11 publications

References 52 publications

Formation of Fe and Fe₂O₃ Microspirals via Interfacial Synthesis

Formation of Fe and Fe₂O₃ Microspirals via Interfacial Synthesis

Flower‐like Fe(OH)₃ as Sulfur Hosts for High‐Performance Lithium–Sulfur Batteries

Anti-Oxidant and Anti-Microbial Activities of [ZnO: CoO/ Eugenol] and [ZnO: Fe2O3/ Eugenol] Nanocomposites

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Synthesis of Fe(OH)3 Microtubes at the Gas–Solution Interface and Their Use for the Fabrication of Fe2O3 and Fe Microtubes

Cited by 11 publications

References 52 publications

Formation of Fe and Fe2O3 Microspirals via Interfacial Synthesis

Formation of Fe and Fe2O3 Microspirals via Interfacial Synthesis

Flower‐like Fe(OH)3 as Sulfur Hosts for High‐Performance Lithium–Sulfur Batteries

Anti-Oxidant and Anti-Microbial Activities of [ZnO: CoO/ Eugenol] and [ZnO: Fe2O3/ Eugenol] Nanocomposites

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Product

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Synthesis of Fe(OH)₃ Microtubes at the Gas–Solution Interface and Their Use for the Fabrication of Fe₂O₃ and Fe Microtubes

Formation of Fe and Fe₂O₃ Microspirals via Interfacial Synthesis

Formation of Fe and Fe₂O₃ Microspirals via Interfacial Synthesis

Flower‐like Fe(OH)₃ as Sulfur Hosts for High‐Performance Lithium–Sulfur Batteries