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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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer
2012
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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. |
format | Online Article Text |
id | pubmed-3274459 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Springer |
record_format | MEDLINE/PubMed |
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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