公开(公告)号：WO2015061327A1

公开(公告)日：2015-04-30

申请号：PCT/US2014/061589

申请日：2014-10-21

申请人： THE PENN STATE RESEARCH FOUNDATION ,  SHINSHU UNIVERSITY

发明人： CRUZ-SILVA, Rodolfo ,  MORELOS, Aaron ,  TERRONES, Mauricio ,  ELIAS, Ana Laura ,  PEREA-LOPEZ, Nestor ,  ENDO, Morinobu

IPC分类号： C01B31/04 ,  D01F9/12 ,  B82Y40/00

CPC分类号： C01B31/043 ,  B01D39/2065 ,  B01D2239/065 ,  B01D2239/1233 ,  C01B32/194 ,  C01B32/23 ,  C08K3/04 ,  C08K3/18 ,  C09D5/24 ,  C09D7/70 ,  D01D5/426 ,  D01F9/12 ,  D01F11/10 ,  D01F11/14 ,  H01B1/04 ,  Y10T428/2918 ,  Y10T428/31678 ,  Y10T428/31993 ,  Y10T442/277 ,  Y10T442/2861 ,  Y10T442/2984

摘要： We report a method of preparation of highly elastic graphene oxide films, and their transformation into graphene oxide fibers and electrically conductive graphene fibers by spinning. Methods typically include: 1) oxidation of graphite to graphene oxide, 2) preparation of graphene oxide slurry with high solid contents and residues of sulfuric acid impurities. 3) preparation of large area films by bar-coating or dropcasting the graphene oxide dispersion and drying at low temperature. 4) spinning the graphene oxide film into a fiber, and 5) thermal or chemical reduction of the graphene oxide fiber into an electrically conductive graphene fiber. The resulting films and fiber have excellent mechanical properties, improved morphology as compared with current graphene oxide fibers, high electrical conductivity upon thermal reduction, and improved field emission properties.

摘要翻译： 我们报告了一种制备高弹性石墨烯氧化物膜的方法，并且通过旋转将其转化为氧化石墨烯氧化纤维和导电石墨烯纤维。 方法通常包括：1）将石墨氧化成石墨烯氧化物，2）制备具有高固体含量和硫酸杂质残留物的石墨烯氧化物浆料。 3）通过棒状涂布或滴加石墨烯氧化物分散体并在低温下干燥来制备大面积膜。 4）将石墨烯氧化膜旋转成纤维，和5）将石墨烯氧化物纤维热或化学还原成导电石墨烯纤维。 所得膜和纤维具有优异的机械性能，与目前的氧化烯氧化物纤维相比具有改进的形态，热还原时的高导电性和改善的场致发射性能。