Hui Zhang et al 2008 Nanotechnology 19 035711 doi:10.1088/0957-4484/19/03/035711
From cobalt nitrate carbonate hydroxide hydrate nanowires to porous Co3O4 nanorods for high performance lithium-ion battery electrodes
Hui Zhang, Jianbo Wu, Chuanxin Zhai, Xiangyang Ma, Ning Du, Jiangping Tu and Deren Yang1
Show affiliationsWe have developed a simple approach for the large-scale synthesis of cobalt nitrate carbonate hydroxide hydrate (Co(CO3)0.35(NO3)0.2(OH)1.1
1.74H2O) nanowires via the hydrothermal process using sodium hydroxide and formaldehyde as mineralizers at 120 °C. The porous Co3O4 nanorods 10–30 nm in diameter and hundreds of nanometres in length have been fabricated from the above-mentioned multicomponent nanowires by calcination at 400 °C. The morphology and structure of cobalt nitrate carbonate hydroxide hydrate nanowires and Co3O4 nanorods have been characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM) and x-ray powder diffraction (XRD). Moreover, the porous Co3O4 nanorods have been applied in the negative electrode materials for lithium ion batteries, which exhibit high electrochemical performance.
- PACS
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81.16.-c Methods of nanofabrication and processing
68.37.Lp Transmission electron microscopy (TEM)
68.37.Hk Scanning electron microscopy (SEM) (including EBIC)
82.47.Aa Lithium-ion batteries
- Subjects
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Surfaces, interfaces and thin films
- Dates
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Issue 3 (23 January 2008)
Received 30 August 2007, in final form 30 October 2007
Published 14 December 2007
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From cobalt nitrate carbonate hydroxide hydrate nanowires to porous Co3O4 nanorods for high performance lithium-ion battery electrodes
Hui Zhang et al 2008 Nanotechnology 19 035711
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