Synthesis and Electrochemical Properties of Porous α-Co(OH)2 and Co3O4 Microspheres

Yingying Xu; Zhiyuan Liu; Di Chen; Yuanjun Song; Rongming Wang

doi:10.1016/j.pnsc.2017.03.001

Synthesis and Electrochemical Properties of Porous α-Co(OH)₂ and Co₃O₄ Microspheres

Yingying Xu, Zhiyuan Liu, Di Chen, Yuanjun Song, Rongming Wang^*

^*Corresponding author for this work

University of Science and Technology Beijing

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

50 Citations (Scopus)

Abstract

Both α-Co(OH)₂ and Co₃O₄ porous microspheres have been synthesized by the simple solvothermal process as well as subsequent treatment. The morphologies and structures of the as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Both samples have spherical structures consisting of nanosheets, with similar crystallinity. The electrochemical properties of both samples were further investigated. Both samples show excellent electrochemical performances including high specific capacity, good cycling stability and rate capability. All results show that these microspheres exhibit potential applications in energy storage field.

Original language	English
Pages (from-to)	197-202
Number of pages	6
Journal	Progress in Natural Science: Materials International
Volume	27
Issue number	2
DOIs	https://doi.org/10.1016/j.pnsc.2017.03.001
Publication status	Published - Apr 2017
Externally published	Yes

Keywords

CoO porous microspheres
Cycling stability
Rate capability
Supercapacitor
α-Co(OH) microspheres

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10.1016/j.pnsc.2017.03.001

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title = "Synthesis and Electrochemical Properties of Porous α-Co(OH)2 and Co3O4 Microspheres",

abstract = "Both α-Co(OH)2 and Co3O4 porous microspheres have been synthesized by the simple solvothermal process as well as subsequent treatment. The morphologies and structures of the as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Both samples have spherical structures consisting of nanosheets, with similar crystallinity. The electrochemical properties of both samples were further investigated. Both samples show excellent electrochemical performances including high specific capacity, good cycling stability and rate capability. All results show that these microspheres exhibit potential applications in energy storage field.",

keywords = "CoO porous microspheres, Cycling stability, Rate capability, Supercapacitor, α-Co(OH) microspheres",

author = "Yingying Xu and Zhiyuan Liu and Di Chen and Yuanjun Song and Rongming Wang",

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T1 - Synthesis and Electrochemical Properties of Porous α-Co(OH)2 and Co3O4 Microspheres

AU - Xu, Yingying

AU - Liu, Zhiyuan

AU - Chen, Di

AU - Song, Yuanjun

AU - Wang, Rongming

PY - 2017/4

Y1 - 2017/4

N2 - Both α-Co(OH)2 and Co3O4 porous microspheres have been synthesized by the simple solvothermal process as well as subsequent treatment. The morphologies and structures of the as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Both samples have spherical structures consisting of nanosheets, with similar crystallinity. The electrochemical properties of both samples were further investigated. Both samples show excellent electrochemical performances including high specific capacity, good cycling stability and rate capability. All results show that these microspheres exhibit potential applications in energy storage field.

AB - Both α-Co(OH)2 and Co3O4 porous microspheres have been synthesized by the simple solvothermal process as well as subsequent treatment. The morphologies and structures of the as-synthesized products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). Both samples have spherical structures consisting of nanosheets, with similar crystallinity. The electrochemical properties of both samples were further investigated. Both samples show excellent electrochemical performances including high specific capacity, good cycling stability and rate capability. All results show that these microspheres exhibit potential applications in energy storage field.

KW - CoO porous microspheres

KW - Cycling stability

KW - Rate capability

KW - Supercapacitor

KW - α-Co(OH) microspheres

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Synthesis and Electrochemical Properties of Porous α-Co(OH)₂ and Co₃O₄ Microspheres

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Keywords

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