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Microwave-assisted synthesis of sheet-shaped Co3O4 for reversible Li-storage: Regulation of structure and performance

yanzhengquan 添加于 2017/2/18 19:23:05  213次阅读 | 0次推荐 | 5个评论

To elucidate the relation between the structure and Listorage performances, a kind of controllable and porous nano sheetshaped Co3O4 (Co3O4-AS) was constructed from nano β-Co(OH)2 precursor, which was obtained from common Co(NO3)2 solution without any templates under microwave radiation conditions. A probable assembly mechanism was proposed accordingly on basis of enough analyses and comparison. After its structure was characterized by SEM, XRD, TEM and N2 absorption/desorption isotherms, Co3O4-AS was effectively applied for high reversible Listorage anode in lithium-ion battery, i.e., a reversible capacity of 920 mAh g–1 after 100 cycles and a reserved capacity of 445 mAh g–1 at 5C. The improved property might be attributed to the remarkable synergistic effects between porous structures and sheet-shaped morphologies, resulting in short and facile diffusion, good electronicionic conductivity, and structural stability during cycling.

作 者:Wenli Yao*, Qinian Dai, Yong Liu, Qian Zhang, Shengwen Zhong, Zhengquan Yan*
期刊名称: ChemElectroChem
期卷页: 2017 第4卷 第5期 1236–1242页
学科领域:工程材料 » 工程热物理与能源利用 » 可再生与替代能源利用中的工程热物理问题
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原文链接:http://onlinelibrary.wiley.com/doi/10.1002/celc.201700096/full
DOI: DOI: 10.1002/celc.201700096
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