石墨烯材料

Fig. 2. FESEM images of the as-prepared Mn3O4/graphene nanocomposites: (a)lowmagnification image, showing the
generalmorphology of graphene nanosheets with embedded Mn3O4 nanoparticles and (b) highmagnification image, illustrating Mn3O4
GR/RuO2 GR/Mn3O4 GR/Fe3O4 GR/Co3O4 GR/Ni(OH)2 GR/Co(OH)2 GR/KOH GR/BiOx 导电聚合物：GR/ PAn GR/PPy 其它: Au, Pt 插层GR GR/Sn3S4
文献简述1
Graphene nanosheets for enhanced lithium storage in lithium ion batteries
Fig. 2 (a) Low magnification TEM image of giant graphene nanosheets, resembling wavy silk under the TEM beam. (b) High magnification TEM image of the basal plane of graphene nanosheets. (c) HRTEM image of stacked graphene nanosheets, in which the lattice planes correspond to (002) planes with an interlayer distance of 0.37 nm. The inset is the SAED pattern recorded on the basal plane of graphene nanosheet.
文ຫໍສະໝຸດ Baidu简述2
Mn3O4 nanoparticles embedded into graphene nanosheets: Preparation,
characterization, and electrochemical properties for supercapacitors
BeiWanga,b, Jinsoo Parkc, ChengyinWangb, Hyojun Ahnc,
and Mn3O4 (103), (211), and (220) diffraction rings; (b) an HRTEM image illustrating the d-spacing of Mn3O4 nanoparticles, which were evaluated to be around
GuoxiuWanga,b∗ （Australia）
Electrochimica Acta 55 (2010) 6812–6817
材料制备及分析
化学分散法合成GR氧化物，水合肼还原,制得 悬浮液。
制得MnO2有机凝胶10ml+上述悬浮液35ml 经 过超声煅烧制得样品。
形貌测试：XRD, FESEM, TEM , AFM 电化学性能测试：CV
石墨烯在电容器电极材料中研究现状
1. 制备方法的研究与改进 2. 复合材料的探究：
1）与碳材料复合 2）与金属氧化物或水合金氧化物复合 3）与导电聚合物复合
相关文献复合材料报导(For SC)
碳材料：GR/CNTs GR/MWNTs GR/CNFs 金氧化物：GR/MnO2 GR/SnO2 GR/ZnO
Guoxiu Wang*, Xiaoping Shen, Jane Yao, Jinsoo Park
Australia
CARBON 47 (2009) 2049 – 2053
简述
制备：电化学方法---氧化，超声剥落，水合肼
还原
表征与测试：XRD TEM UV-Vis 充放电曲
线 稳定性测试
结论： Graphene nanosheet anodes exhibited an
enhanced reversible lithium storage capacity as anode in lithium-ion cells and good cyclic performance.
Fig. 1 (a) Low magnification FEG-SEM image of loose graphene nanosheet powders. (b) High magnification FEG-SEM view of graphene nanosheet petals.
Fig. 1. X-ray diffraction patterns: (a) vacuum dried graphene nanosheets and (b)Mn3O4/graphene nanocomposites showing the diffraction lines of Hausmannite Mn3O4 and graphene nanosheets (GNS).
nanoparticles on graphene nanosheets.
Fig. 3. TEM images of the as-prepared Mn3O4/graphene nanocomposites: (a) a low magnification TEMimage showing dense Mn3O4 nanoparticles deposited on a large area of graphene nanosheets and the SAED pattern (inset) displaying graphene (002)
石墨烯材料在超级电容 器中的应用
2011-04-02
石墨烯材料
石墨烯（GR）是一种从石墨材料中剥离出的 单层碳原子面材料，是碳的二维结构。石墨烯 是继纳米碳管、富勒烯球后的又一重大发现。 这种石墨晶体薄膜的厚度只有0.335纳米。 特性：机械强度，热稳定性，导电性
制备: 1.加热SiC的方法 2.轻微摩擦法或撕胶带法 3.化学分散法