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Structural characterization and electrochemical properties of Co(3)O(4 )anode materials synthesized by a hydrothermal method

Cobalt oxide [Co(3)O(4)] anode materials were synthesized by a simple hydrothermal process, and the reaction conditions were optimized to provide good electrochemical properties. The effect of various synthetic reaction and heat treatment conditions on the structure and electrochemical properties of...

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Autores principales: Shin, Chorong, Manuel, James, Kim, Dul-Sun, Ryu, Ho-Suk, Ahn, Hyo-Jun, Ahn, Jou-Hyeon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3274459/
https://www.ncbi.nlm.nih.gov/pubmed/22230236
http://dx.doi.org/10.1186/1556-276X-7-73
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author Shin, Chorong
Manuel, James
Kim, Dul-Sun
Ryu, Ho-Suk
Ahn, Hyo-Jun
Ahn, Jou-Hyeon
author_facet Shin, Chorong
Manuel, James
Kim, Dul-Sun
Ryu, Ho-Suk
Ahn, Hyo-Jun
Ahn, Jou-Hyeon
author_sort Shin, Chorong
collection PubMed
description Cobalt oxide [Co(3)O(4)] anode materials were synthesized by a simple hydrothermal process, and the reaction conditions were optimized to provide good electrochemical properties. The effect of various synthetic reaction and heat treatment conditions on the structure and electrochemical properties of Co(3)O(4 )powder was also studied. Physical characterizations of Co(3)O(4 )are investigated by X-ray diffraction, scanning electron microscopy, and Brunauer-Emmett-Teller [BET] method. The BET surface area decreased with values at 131.8 m(2)/g, 76.1 m(2)/g, and 55.2 m(2)/g with the increasing calcination temperature at 200°C, 300°C, and 400°C, respectively. The Co(3)O(4 )particle calcinated at 200°C for 3 h has a higher surface area and uniform particle size distribution which may result in better sites to accommodate Li(+ )and electrical contact and to give a good electrochemical property. The cell composed of Super P as a carbon conductor shows better electrochemical properties than that composed of acetylene black. Among the samples prepared under different reaction conditions, Co(3)O(4 )prepared at 200°C for 10 h showed a better cycling performance than the other samples. It gave an initial discharge capacity of 1,330 mAh/g, decreased to 779 mAh/g after 10 cycles, and then showed a steady discharge capacity of 606 mAh/g after 60 cycles.
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spelling pubmed-32744592012-02-08 Structural characterization and electrochemical properties of Co(3)O(4 )anode materials synthesized by a hydrothermal method Shin, Chorong Manuel, James Kim, Dul-Sun Ryu, Ho-Suk Ahn, Hyo-Jun Ahn, Jou-Hyeon Nanoscale Res Lett Nano Express Cobalt oxide [Co(3)O(4)] anode materials were synthesized by a simple hydrothermal process, and the reaction conditions were optimized to provide good electrochemical properties. The effect of various synthetic reaction and heat treatment conditions on the structure and electrochemical properties of Co(3)O(4 )powder was also studied. Physical characterizations of Co(3)O(4 )are investigated by X-ray diffraction, scanning electron microscopy, and Brunauer-Emmett-Teller [BET] method. The BET surface area decreased with values at 131.8 m(2)/g, 76.1 m(2)/g, and 55.2 m(2)/g with the increasing calcination temperature at 200°C, 300°C, and 400°C, respectively. The Co(3)O(4 )particle calcinated at 200°C for 3 h has a higher surface area and uniform particle size distribution which may result in better sites to accommodate Li(+ )and electrical contact and to give a good electrochemical property. The cell composed of Super P as a carbon conductor shows better electrochemical properties than that composed of acetylene black. Among the samples prepared under different reaction conditions, Co(3)O(4 )prepared at 200°C for 10 h showed a better cycling performance than the other samples. It gave an initial discharge capacity of 1,330 mAh/g, decreased to 779 mAh/g after 10 cycles, and then showed a steady discharge capacity of 606 mAh/g after 60 cycles. Springer 2012-01-09 /pmc/articles/PMC3274459/ /pubmed/22230236 http://dx.doi.org/10.1186/1556-276X-7-73 Text en Copyright ©2012 Shin et al; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Shin, Chorong
Manuel, James
Kim, Dul-Sun
Ryu, Ho-Suk
Ahn, Hyo-Jun
Ahn, Jou-Hyeon
Structural characterization and electrochemical properties of Co(3)O(4 )anode materials synthesized by a hydrothermal method
title Structural characterization and electrochemical properties of Co(3)O(4 )anode materials synthesized by a hydrothermal method
title_full Structural characterization and electrochemical properties of Co(3)O(4 )anode materials synthesized by a hydrothermal method
title_fullStr Structural characterization and electrochemical properties of Co(3)O(4 )anode materials synthesized by a hydrothermal method
title_full_unstemmed Structural characterization and electrochemical properties of Co(3)O(4 )anode materials synthesized by a hydrothermal method
title_short Structural characterization and electrochemical properties of Co(3)O(4 )anode materials synthesized by a hydrothermal method
title_sort structural characterization and electrochemical properties of co(3)o(4 )anode materials synthesized by a hydrothermal method
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3274459/
https://www.ncbi.nlm.nih.gov/pubmed/22230236
http://dx.doi.org/10.1186/1556-276X-7-73
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