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1. 发明申请

US20140205841A1 GRANULES OF GRAPHENE OXIDE BY SPRAY DRYING 审中-公开
标题翻译：通过喷雾干燥形成石墨氧化物颗粒
公开(公告)号：US20140205841A1
公开(公告)日：2014-07-24
申请号：US14156070
申请日：2014-01-15
申请人： Hongwei Qiu , Thomas A. Bechtold , Lihn Tung Le , Woo Young Lee
发明人： Hongwei Qiu , Thomas A. Bechtold , Lihn Tung Le , Woo Young Lee
IPC分类号： C01B31/04
CPC分类号： C01B32/23 , C01B32/184 , H01G11/36 , Y02E60/13 , Y10T428/2982
摘要： Granules of graphene oxide may be produced from a dispersion of nanoscale graphene oxide sheets by a spray drying method. Such granules have a three-dimensional corrugated morphology. The complexity of the corrugations, and the size distribution of the granules can be varied through selection of the spray-drying equipment used, and variation of the composition of the dispersion and the spray-drying parameters. Structural modifiers may be included in the graphene oxide dispersion to control the ultimate morphology of the granules. The granules of graphene oxide may be thermally reduced at a moderate temperature of 220° C. to increase the granules' electrical conductivity. The reduced granules may be used to fabricate electrodes for supercapacitors. The power and energy density of such an electrode material is comparable to those of conventional/commercial activated carbon-based electrodes.
摘要翻译：氧化石墨烯的颗粒可以通过喷雾干燥法从纳米级石墨烯氧化物片的分散体制备。这种颗粒具有三维波纹形态。波纹的复杂性和颗粒的尺寸分布可以通过选择所使用的喷雾干燥设备以及分散体的组成和喷雾干燥参数的变化来改变。结构改性剂可以包括在氧化石墨烯分散体中以控制颗粒的最终形态。氧化石墨烯的颗粒可以在220℃的中等温度下热还原，以增加颗粒的导电性。还原颗粒可用于制造超级电容器的电极。这种电极材料的功率和能量密度与常规/商业活性炭基电极的功率和能量密度相当。

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