| Mg二次电池正极材料Cu2Mo6S8的合成与表征 | |
| Synthesis and Electrochemical Characterization of Rechargeable Magnesium Battery Cathode Material Cu2Mo6S8 | |
| 摘要: 采用CuS·H2O、MoS2、Mo为原料，用熔盐法(KCl为熔盐)合成了谢弗雷尔相的Cu2Mo6S8正极材料，并用XRD，SEM，循环伏安测试，充放电测试对材料的结构和电化学性能进行研究。XRD结果表明本Cu2Mo6S8正极材料属于R3 空间群，具有良好的晶型。电化学测试表明，当材料在电压0.2~2 V范围内进行充放电时，其放电比容量在90 mAh·g-1左右，循环稳定性和可逆性均良好。该材料的充放电曲线中在1.2 V和1.9 V分别有还原峰，0.7 V和1.0 V分别有氧化峰，与伏安曲线相对应。 | |
| 关键词: 镁二次电池 Cu2Mo6S8 正极材料 | |
| 基金项目: | |
| Abstract: The Chevrel phase (CP), Cu2Mo6S8, was synthesized by molten salt synthesis (KCl as molten salt). The crystal structure and electrochemical properties were analyzed by X-ray diffraction (XRD), scaning electron microscopy (SEM), charge-discharge test and cyclic voltammetry (CV). XRD analysis showed that the most diffraction peaks were related to rhombohedral phase (space group: R3). When charge-discharge voltage was between 0.2 V and 2 V, the result of electrochemical tests suggested that the cyclic properties of the material were stable and the specific capacity was about 90 mAh·g-1. There were two obvious charge voltage plateaus at 1.2 V and 1.9 V, and discharge voltage plateaus at 0.7 V and 1.0 V in the charge-discharge curves, corresponding to cyclic voltammogram. | |
| Keywords: rechargeable magnesium battery Cu2Mo6S8 cathode material | |
| 摘要点击次数: 1993 | |
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| 李 斐,吴晓梅,曾小勤,张 思,苏 昕,邹建新,丁文江.Mg二次电池正极材料Cu2Mo6S8的合成与表征[J].无机化学学报,2012,28(7):1310-1314. | |
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