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	Mn_3O_4/石墨烯复合材料的制备与电化学性能研究; Synthesis and Electrochemical Performance of Mn_3O_4/Graphene Composites
	杨姗姗 ; 张倩 ; 林雄贵 ; 郑明森 ; 董全峰
	2015-08-28
关键词	锂离子电池 负极材料 Mn3O4 石墨烯 lithium-ion battery anode materials Mn3O4 graphene
英文摘要	本文以氧化石墨烯(gO)溶液为氧化剂,采用水热法使gO直接氧化Mn(AC)2制备Mn3O4/石墨烯复合材料,并通过在制备过程中加入氨水提高了复合材料中gO的还原程度与Mn3O4颗粒的分散性.制得的Mn3O4/石墨烯复合材料表现出优异的电化学性能.在0.5 A·g-1的电流密度下复合材料质量比容量可达到850 M AH·g-1,0.5 A·g-1时充放电循环测试200周容量保持率为99%.; The Mn3O4/Graphene composites were synthesized by hydrothermal method with the in-situ redox reaction of graphene oxide(GO) and manganese acetate(Mn(Ac)2).The phase structures and morphologies of the materials were characterized by XRD, SEM and TEM.The XPS and IR techniques were used for studying the residual function groups of reduced graphene oxide(RGO).The electrochemical performances of the hybrids were tested in a coin cell.Results showed that the composites prepared with the addition of ammonia water(RM-A) have better performance.The graphenes in RM-A were better-reduced and the Mn3O4 particles were much smaller.The Mn3O4/Graphene composites exhibited a high specific capacity with good rate capability and cycle stability.At the test current density of 0.5 A·g-1, the composites demonstrated a capacity of 850 m Ah·g-1,and no capacity decays were observed up to 200 cycles.; 国家自然科学基金项目(No.20720150042;No.21321062); 973项目(No.2015CB251102)资助
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/107103]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	杨姗姗,张倩,林雄贵,等. Mn_3O_4/石墨烯复合材料的制备与电化学性能研究, Synthesis and Electrochemical Performance of Mn_3O_4/Graphene Composites[J],2015.
APA	杨姗姗,张倩,林雄贵,郑明森,&董全峰.(2015).Mn_3O_4/石墨烯复合材料的制备与电化学性能研究..
MLA	杨姗姗,et al."Mn_3O_4/石墨烯复合材料的制备与电化学性能研究".(2015).

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