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

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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. / Gulina, Larisa ; Tolstoy, Valeri; Kuklo, Leonid; Mikhailovskii, Vladimir; Panchuk, Vitaly ; Semenov, Valentin.

в: European Journal of Inorganic Chemistry, Том 2018, № 17, 08.05.2018, стр. 1842-1846.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{815c5a931c2643f19e81ea274a88e25e,

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

abstract = "A straightforward and effective method is reported for obtaining microtubes of iron-based compounds by interfacial interaction between a solution and gaseous reagents. A thin amorphous film of Fe(OH)3 was synthesized on the surface of a mixed FeCl2/FeCl3/ascorbic acid aqueous solution as a result of the interaction with gaseous ammonium. When dried in air, the film was oxidized and transformed into microtubes. These Fe(OH)3 microtubes were converted into α-Fe2O3 ones by annealing in air. As a result of thermal hydrogen reduction, α-Fe microtubes were formed. Both the annealing in air and reduction in a hydrogen flow at a temperature of 1,000 °C preserve the tubular morphology of the product. The microtubes synthesized were characterized by optical and scanning microscopy, structural and compositional analyses, and M{\"o}ssbauer spectroscopy. A hypothesis is proposed about the model of microtube formation resulting from the chemical reaction at the gas–solution interface.",

keywords = "Amorphous materials, Interfaces, Iron, Microtubes, Oxides, ROOM-TEMPERATURE, LAF3, DEPOSITION, NANOCRYSTALS, IRON-OXIDE NANOTUBES, IRON(III) OXIDE, NANOPARTICLES, FACILE SYNTHESIS, MAGNETIC-PROPERTIES, MORPHOLOGY",

author = "Larisa Gulina and Valeri Tolstoy and Leonid Kuklo and Vladimir Mikhailovskii and Vitaly Panchuk and Valentin Semenov",

year = "2018",

month = may,

day = "8",

doi = "10.1002/ejic.201800182",

language = "English",

volume = "2018",

pages = "1842--1846",

journal = "Berichte der deutschen chemischen Gesellschaft",

issn = "0365-9496",

publisher = "Wiley-Blackwell",

number = "17",

}

RIS

TY - JOUR

T1 - Synthesis of Fe(OH)3 Microtubes at the Gas–Solution Interface and Their Use for the Fabrication of Fe2O3 and Fe Microtubes

AU - Gulina, Larisa

AU - Tolstoy, Valeri

AU - Kuklo, Leonid

AU - Mikhailovskii, Vladimir

AU - Panchuk, Vitaly

AU - Semenov, Valentin

PY - 2018/5/8

Y1 - 2018/5/8

N2 - A straightforward and effective method is reported for obtaining microtubes of iron-based compounds by interfacial interaction between a solution and gaseous reagents. A thin amorphous film of Fe(OH)3 was synthesized on the surface of a mixed FeCl2/FeCl3/ascorbic acid aqueous solution as a result of the interaction with gaseous ammonium. When dried in air, the film was oxidized and transformed into microtubes. These Fe(OH)3 microtubes were converted into α-Fe2O3 ones by annealing in air. As a result of thermal hydrogen reduction, α-Fe microtubes were formed. Both the annealing in air and reduction in a hydrogen flow at a temperature of 1,000 °C preserve the tubular morphology of the product. The microtubes synthesized were characterized by optical and scanning microscopy, structural and compositional analyses, and Mössbauer spectroscopy. A hypothesis is proposed about the model of microtube formation resulting from the chemical reaction at the gas–solution interface.

AB - A straightforward and effective method is reported for obtaining microtubes of iron-based compounds by interfacial interaction between a solution and gaseous reagents. A thin amorphous film of Fe(OH)3 was synthesized on the surface of a mixed FeCl2/FeCl3/ascorbic acid aqueous solution as a result of the interaction with gaseous ammonium. When dried in air, the film was oxidized and transformed into microtubes. These Fe(OH)3 microtubes were converted into α-Fe2O3 ones by annealing in air. As a result of thermal hydrogen reduction, α-Fe microtubes were formed. Both the annealing in air and reduction in a hydrogen flow at a temperature of 1,000 °C preserve the tubular morphology of the product. The microtubes synthesized were characterized by optical and scanning microscopy, structural and compositional analyses, and Mössbauer spectroscopy. A hypothesis is proposed about the model of microtube formation resulting from the chemical reaction at the gas–solution interface.

KW - Amorphous materials

KW - Interfaces

KW - Iron

KW - Microtubes

KW - Oxides

KW - ROOM-TEMPERATURE

KW - LAF3

KW - DEPOSITION

KW - NANOCRYSTALS

KW - IRON-OXIDE NANOTUBES

KW - IRON(III) OXIDE

KW - NANOPARTICLES

KW - FACILE SYNTHESIS

KW - MAGNETIC-PROPERTIES

KW - MORPHOLOGY

UR - http://www.scopus.com/inward/record.url?scp=85046645938&partnerID=8YFLogxK

U2 - 10.1002/ejic.201800182

DO - 10.1002/ejic.201800182

M3 - Article

AN - SCOPUS:85046645938

VL - 2018

SP - 1842

EP - 1846

JO - Berichte der deutschen chemischen Gesellschaft

JF - Berichte der deutschen chemischen Gesellschaft

SN - 0365-9496

IS - 17

ER -

ID: 28271157