| 镁二次电池正极材料纳米Fe3S4的电化学性能 |
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| 引用本文： | 张若然,吴晓梅,曾小勤,邹建新,丁文江. 镁二次电池正极材料纳米Fe3S4的电化学性能[J]. 无机化学学报, 2015, 31(7): 1351-1356 |
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| 作者姓名： | 张若然 吴晓梅 曾小勤 邹建新 丁文江 |
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| 作者单位： | 上海交通大学材料科学与工程学院, 金属基复合材料国家重点实验室, 上海 200240,上海交通大学材料科学与工程学院, 金属基复合材料国家重点实验室, 上海 200240,上海交通大学材料科学与工程学院, 金属基复合材料国家重点实验室, 上海 200240,上海交通大学材料科学与工程学院, 金属基复合材料国家重点实验室, 上海 200240,上海交通大学材料科学与工程学院, 金属基复合材料国家重点实验室, 上海 200240 |
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| 基金项目： | 国家自然科学基金(No.51274140)资助项目。 |
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| 摘 要： | 首次将尖晶石相的纳米Fe3S4材料用作镁二次电池的正极材料。采用水热法一步合成了具有纳米结构的Fe3S4材料, 并采用XRD、SEM测试手段对产物的物相、形貌进行了表征。实验结果表明, 在160 ℃能够合成纯相的Fe3S4材料, 该材料具有银耳状纳米结构。电化学测试结果显示, 水热法合成的纳米Fe3S4材料能够在镁二次电池体系中进行有效的可逆充放电, 放电平台电压为0.9 V, 首次放电容量高达267 mAh·g-1, 50次循环后衰减至110 mAh·g-1。电化学交流阻抗测试结果表明镁离子能够在Fe3S4晶格中扩散。
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| 关 键 词： | 镁电池 正极材料 Fe3S4 纳米材料 |
| 收稿时间： | 2015-02-06 |
| 修稿时间： | 2015-04-28 |
Electrochemical Properties of Nanostructured Greigite (Fe3S4) as a Cathode Material in Rechargeable Magnesium Battery |
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| ZHANG Ruo-Ran,WU Xiao-Mei,ZENG Xiao-Qin,ZOU Jian-Xin and DING Wen-Jiang. Electrochemical Properties of Nanostructured Greigite (Fe3S4) as a Cathode Material in Rechargeable Magnesium Battery[J]. Chinese Journal of Inorganic Chemistry, 2015, 31(7): 1351-1356 |
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| Authors: | ZHANG Ruo-Ran WU Xiao-Mei ZENG Xiao-Qin ZOU Jian-Xin DING Wen-Jiang |
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| Affiliation: | State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | Nanostructured greigite (Fe3S4) prepared by hydrothermal method was firstly used as a cathode material for rechargeable magnesium battery. The as-synthesized samples were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). Cyclic voltammetry and galvanostatic charge-discharge cycling tests showed that the obtained Fe3S4 could be reversibly cycled in rechargeable magnesium battery. The discharge voltage plateau located at 0.9 V. The nanostructured Fe3S4 electrode exhibited a high capacity of 267 mAh·g-1 during the first discharge process, then the capacity gradually dropped to 110 mAh·g-1 after 50 cycles. Electrochemical impedance spectroscopy tests showed that Mg2+ can diffuse in the lattice of Fe3S4. |
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| Keywords: | magnesium battery cathode material Fe3S4 nanostructured material |
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