Hydrothermal-controlled synthesis of hexagonal Co9S8 single crystal flake

Yuan Guang Zhang; Fan Guo; Song Ming Wan; Wei Wei Zheng

Hydrothermal-controlled synthesis of hexagonal Co₉S₈ single crystal flake

Yuan Guang Zhang, Fan Guo, Song Ming Wan, Wei Wei Zheng

Research output: Contribution to journal › Article › peer-review

Abstract

Hexagonal Co₉S₈ single crystal flake was synthesized in hydrazine hydrate (N₂H₄·H₂O) solvent at 180°C for 72 h by hydrothermal method using cobalt sulfate hydrate (CoSO₄·7H₂O) and anhydrous sodium sulfate (Na₂SO₃) as the starting materials. The as-prepared Co₉S₈ samples were characterized by X-ray powder diffraction (XRD) transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). The results show that the samples are mainly composed of hexagonal Co₉S₈ single crystal flakes with diameters of 0.8-1.5/Mm.The suitable reaction temperature and reaction time for growing Co₉S₈ single crystals is 180°C and 72h respectively. The saturation magnetization (M_s) and coercivity (H_c) values of the sample are 65 emu /g and 333 Oe under the room temperature respectively.

Original language	English (US)
Pages (from-to)	926-929
Number of pages	4
Journal	Rengong Jingti Xuebao/Journal of Synthetic Crystals
Volume	33
Issue number	6
State	Published - Dec 2004
Externally published	Yes

Keywords

CoS
Crystal
Hydrothermal method

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

Cite this

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title = "Hydrothermal-controlled synthesis of hexagonal Co9S8 single crystal flake",

abstract = "Hexagonal Co9S8 single crystal flake was synthesized in hydrazine hydrate (N2H4·H2O) solvent at 180°C for 72 h by hydrothermal method using cobalt sulfate hydrate (CoSO4·7H2O) and anhydrous sodium sulfate (Na2SO3) as the starting materials. The as-prepared Co9S8 samples were characterized by X-ray powder diffraction (XRD) transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). The results show that the samples are mainly composed of hexagonal Co9S8 single crystal flakes with diameters of 0.8-1.5/Mm.The suitable reaction temperature and reaction time for growing Co9S8 single crystals is 180°C and 72h respectively. The saturation magnetization (Ms) and coercivity (Hc) values of the sample are 65 emu /g and 333 Oe under the room temperature respectively.",

keywords = "CoS, Crystal, Hydrothermal method",

author = "Zhang, {Yuan Guang} and Fan Guo and Wan, {Song Ming} and Zheng, {Wei Wei}",

year = "2004",

month = dec,

language = "English (US)",

volume = "33",

pages = "926--929",

journal = "Rengong Jingti Xuebao/Journal of Synthetic Crystals",

issn = "1000-985X",

publisher = "Chinese Ceramic Society",

number = "6",

}

TY - JOUR

T1 - Hydrothermal-controlled synthesis of hexagonal Co9S8 single crystal flake

AU - Zhang, Yuan Guang

AU - Guo, Fan

AU - Wan, Song Ming

AU - Zheng, Wei Wei

PY - 2004/12

Y1 - 2004/12

N2 - Hexagonal Co9S8 single crystal flake was synthesized in hydrazine hydrate (N2H4·H2O) solvent at 180°C for 72 h by hydrothermal method using cobalt sulfate hydrate (CoSO4·7H2O) and anhydrous sodium sulfate (Na2SO3) as the starting materials. The as-prepared Co9S8 samples were characterized by X-ray powder diffraction (XRD) transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). The results show that the samples are mainly composed of hexagonal Co9S8 single crystal flakes with diameters of 0.8-1.5/Mm.The suitable reaction temperature and reaction time for growing Co9S8 single crystals is 180°C and 72h respectively. The saturation magnetization (Ms) and coercivity (Hc) values of the sample are 65 emu /g and 333 Oe under the room temperature respectively.

AB - Hexagonal Co9S8 single crystal flake was synthesized in hydrazine hydrate (N2H4·H2O) solvent at 180°C for 72 h by hydrothermal method using cobalt sulfate hydrate (CoSO4·7H2O) and anhydrous sodium sulfate (Na2SO3) as the starting materials. The as-prepared Co9S8 samples were characterized by X-ray powder diffraction (XRD) transmission electron microscope (TEM) and vibrating sample magnetometer (VSM). The results show that the samples are mainly composed of hexagonal Co9S8 single crystal flakes with diameters of 0.8-1.5/Mm.The suitable reaction temperature and reaction time for growing Co9S8 single crystals is 180°C and 72h respectively. The saturation magnetization (Ms) and coercivity (Hc) values of the sample are 65 emu /g and 333 Oe under the room temperature respectively.

KW - CoS

KW - Crystal

KW - Hydrothermal method

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M3 - Article

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SN - 1000-985X

VL - 33

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JO - Rengong Jingti Xuebao/Journal of Synthetic Crystals

JF - Rengong Jingti Xuebao/Journal of Synthetic Crystals

IS - 6

ER -

Hydrothermal-controlled synthesis of hexagonal Co₉S₈ single crystal flake

Abstract

Keywords

ASJC Scopus subject areas

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