Co2P: A facile solid state synthesis and its applications in alkaline rechargeable batteries
Co2P: A facile solid state synthesis and its applications in alkaline rechargeable batteries
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Co2P:一种简便的固态合成及其在碱性充电电池中的应用
DOI:
10.1016/j.jallcom.2011.09.029
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发表时间:
2012-01
影响因子:
6.2
通讯作者:
Yuan, Huatang
中科院分区:
文献类型:
--
作者:
Liu, Guang;Si, Yuchang;Wang, Yijing;Yuan, Huatang
The Co2P crystals are successfully synthesized by a facile solid state reaction. Energy dispersive X-ray spectrum (EDS) results indicate a mol ratio of 0.6686–0.3314 for Co to P, confirming the stoichiometric ratio of Co2P. Galvanostatic charge/discharge tests show that Co2P exhibits a high maximum discharge capacity (Cmax) of 223.5mAhg−1and excellent cyclic properties with capacity retention of 97.9% (C300/Cmax) in the 300th cycle as an anode material in alkaline rechargeable batteries. Cyclic voltammetry (CV) and XRD tests during full charge/discharge processes confirm a quasi-reversible redox mechanism between Co(OH)2and Co resulting from the conversion of Co2P. The simultaneously produced P plays an important role in the whole process – with the reaction and dissolution in the electrolyte, it brings many new interspaces in Co2P body to enlarge the contact area between the active material and the electrolyte, and make the electrochemical process easier and faster.
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影响因子:
1.6
作者:
Li, W;Dhandapani, B;Oyama, ST
通讯作者:
Oyama, ST
影响因子:
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通讯作者:
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影响因子:
5.5
作者:
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Bussell, Mark E.