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- 2018
Co3(HCOO)6@rGO 作为锂离子电池负极材料的研究
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Abstract:
摘要 MOFs材料作为一类新型的锂离子电池电极材料而受到广泛关注和研究. 作者通过溶液扩散法将Co3(HCOO)6原位负载在 rGO（还原氧化石墨烯）上制备出Co3(HCOO)6@rGO复合材料. 将Co3(HCOO)6@rGO作为锂离子电池负极材料，以500 mA·g-1的电流密度恒电流充放电循环 100 周后，仍然保持有 926 mAh·g-1 的比容量，亦表现出很好的倍率性能. 循环伏安和X-射线光电子能谱测试表明，Co3(HCOO)6@rGO材料上的Co2+和甲酸根在充放电过程中均发生可逆的电化学反应. 对比同样采用溶液扩散法合成的 Co3(HCOO)6 的测试结果发现，rGO起到活化甲酸根的电化学反应的作用，同时也改善了Co3(HCOO)6的倍率性能. 将MOFs材料与rGO复合为优化 MOFs 材料的电池性能提供了一个新思路
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