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Co3(HCOO)6@rGO作为锂离子电池负极材料的研究
Authors
江恒
范镜敏
董全峰
郑明森
Publication date
2 July 2018
Publisher
Doi
Cite
Abstract
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.973项目(No.2015CB251102);;国家自然科学基金项目(No.U1305246,No.21673196,No.21621091)资
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Last time updated on 10/06/2020