A layer-by-layer assembly route to [Mn 1/3Co 1/3Ni 1/3]O 2 hollow spheres with electrochemical activity

Yu Ri Lee; Myong A. Woo; Kyung Min Lee; Tae Woo Kim; Jin Ho Choy; Seong Ju Hwang

doi:10.1016/j.jpcs.2011.11.037

A layer-by-layer assembly route to [Mn _1/3Co _1/3Ni _1/3]O ₂ hollow spheres with electrochemical activity

Yu Ri Lee, Myong A. Woo, Kyung Min Lee, Tae Woo Kim, Jin Ho Choy, Seong Ju Hwang

Department of Materials Science and Engineering

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

2 Citations (Scopus)

Abstract

The monolayered nanosheets of layered [Mn _1/3Co _1/3Ni _1/3]O ₂ are prepared by the exfoliation of protonated Li[Mn _1/3Co _1/3Ni _1/3]O ₂ compound and applied as a precursor for synthesizing the hollow spheres of manganese cobalt nickel oxide. The hollow spheres of layered [Mn _1/3Co _1/3Ni _1/3]O ₂ are synthesized via the layer-by-layer (LBL) coating of the nanosheets and polycations on the polystyrene (PS) beads and the following heat-treatment. According to powder X-ray diffraction and diffuse reflectance UV-vis spectroscopy, the layered crystal structure and optical property of [Mn _1/3Co _1/3Ni _1/3]O ₂ nanosheets are well-maintained upon the coating on the PS beads. The high-resolution transmission electron microscopy clearly demonstrates the hollow sphere morphology of the obtained material. The electrode functionality of the [Mn _1/3Co _1/3Ni _1/3]O ₂ hollow spheres is verified by cyclic voltammetry.

Original language	English
Pages (from-to)	1492-1495
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	73
Issue number	12
DOIs	https://doi.org/10.1016/j.jpcs.2011.11.037
Publication status	Published - 2012 Dec

Bibliographical note

Funding Information:
This research was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST)(NRF-2010-C1AAA001-2010-0029065) and by the Ewha Global Top5 Grant 2011 of Ewha Womans University

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.jpcs.2011.11.037

Cite this

@article{c7501626e9624572bfdeae25182babdb,

title = "A layer-by-layer assembly route to [Mn 1/3Co 1/3Ni 1/3]O 2 hollow spheres with electrochemical activity",

abstract = "The monolayered nanosheets of layered [Mn 1/3Co 1/3Ni 1/3]O 2 are prepared by the exfoliation of protonated Li[Mn 1/3Co 1/3Ni 1/3]O 2 compound and applied as a precursor for synthesizing the hollow spheres of manganese cobalt nickel oxide. The hollow spheres of layered [Mn 1/3Co 1/3Ni 1/3]O 2 are synthesized via the layer-by-layer (LBL) coating of the nanosheets and polycations on the polystyrene (PS) beads and the following heat-treatment. According to powder X-ray diffraction and diffuse reflectance UV-vis spectroscopy, the layered crystal structure and optical property of [Mn 1/3Co 1/3Ni 1/3]O 2 nanosheets are well-maintained upon the coating on the PS beads. The high-resolution transmission electron microscopy clearly demonstrates the hollow sphere morphology of the obtained material. The electrode functionality of the [Mn 1/3Co 1/3Ni 1/3]O 2 hollow spheres is verified by cyclic voltammetry.",

author = "Lee, {Yu Ri} and Woo, {Myong A.} and Lee, {Kyung Min} and Kim, {Tae Woo} and Choy, {Jin Ho} and Hwang, {Seong Ju}",

note = "Funding Information: This research was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST)(NRF-2010-C1AAA001-2010-0029065) and by the Ewha Global Top5 Grant 2011 of Ewha Womans University",

year = "2012",

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doi = "10.1016/j.jpcs.2011.11.037",

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AU - Woo, Myong A.

AU - Lee, Kyung Min

AU - Kim, Tae Woo

AU - Choy, Jin Ho

AU - Hwang, Seong Ju

N1 - Funding Information: This research was supported by the National Research Foundation of Korea Grant funded by the Korean Government (MEST)(NRF-2010-C1AAA001-2010-0029065) and by the Ewha Global Top5 Grant 2011 of Ewha Womans University

PY - 2012/12

Y1 - 2012/12

N2 - The monolayered nanosheets of layered [Mn 1/3Co 1/3Ni 1/3]O 2 are prepared by the exfoliation of protonated Li[Mn 1/3Co 1/3Ni 1/3]O 2 compound and applied as a precursor for synthesizing the hollow spheres of manganese cobalt nickel oxide. The hollow spheres of layered [Mn 1/3Co 1/3Ni 1/3]O 2 are synthesized via the layer-by-layer (LBL) coating of the nanosheets and polycations on the polystyrene (PS) beads and the following heat-treatment. According to powder X-ray diffraction and diffuse reflectance UV-vis spectroscopy, the layered crystal structure and optical property of [Mn 1/3Co 1/3Ni 1/3]O 2 nanosheets are well-maintained upon the coating on the PS beads. The high-resolution transmission electron microscopy clearly demonstrates the hollow sphere morphology of the obtained material. The electrode functionality of the [Mn 1/3Co 1/3Ni 1/3]O 2 hollow spheres is verified by cyclic voltammetry.

AB - The monolayered nanosheets of layered [Mn 1/3Co 1/3Ni 1/3]O 2 are prepared by the exfoliation of protonated Li[Mn 1/3Co 1/3Ni 1/3]O 2 compound and applied as a precursor for synthesizing the hollow spheres of manganese cobalt nickel oxide. The hollow spheres of layered [Mn 1/3Co 1/3Ni 1/3]O 2 are synthesized via the layer-by-layer (LBL) coating of the nanosheets and polycations on the polystyrene (PS) beads and the following heat-treatment. According to powder X-ray diffraction and diffuse reflectance UV-vis spectroscopy, the layered crystal structure and optical property of [Mn 1/3Co 1/3Ni 1/3]O 2 nanosheets are well-maintained upon the coating on the PS beads. The high-resolution transmission electron microscopy clearly demonstrates the hollow sphere morphology of the obtained material. The electrode functionality of the [Mn 1/3Co 1/3Ni 1/3]O 2 hollow spheres is verified by cyclic voltammetry.

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