Preparation of a Dispersible Graphene

Abstract

Abstract: Graphene is a functional material with manifold excellent performances, however, its chemical inactive have been hampering its development. The preparation of dispersible graphene is an important mean to the application of graphene. A functionalized graphene(FG) was prepared by treatment of graphite oxide(GO) with γ-aminopropyl-triethoxysilane, and then reduced by hydrazine hydrate. The functionalized graphene without dried can be stable dispersed in DMF/H2O(9∶1, volume ratio) and acetone/H2O(9∶1, volume ratio), and the suspension of functionalized graphene in DMF/H2O(9∶1, volume ratio) can also be dispersed in ethanol or acetone. Infrared spectroscopy(FTIR), X-ray photoelectron spectroscopy(XPS), X-ray diffraction(XRD) were used to characterize the structures of FGO and FG. The results show that the amino on the KH-550 reacted with carboxyl of graphite oxide generating amide, and happened addition reaction with epoxy of graphite oxide. The dried functionalized graphene layers bond with Si—O—Si.

Key words: γ-Aminopropyl-triethoxysilane, Graphite oxide, Graphene, Dispersible

TrendMD:

MA Wen-Shi*, ZHOU Jun-Wen. Preparation of a Dispersible Graphene[J]. Chem. J. Chinese Universities, 2010, 31(10): 1982.

References

[1]Stoller M. D., Park S., Zhu Y., An J., Ruoff R. S.. Nano Lett.[J], 2008, 8(10): 3498—3502 [2]Bolotin K. I., Sikes K. J., Jiang Z., Klima M., Fudenberg G., Hone J., Kim P., Stormer H. L.. Solid State Commun.[J], 2008, 146: 351—355 [3]Balandin A. A., Ghosh S., Bao W., Calizo I., Teweldebrhan D., Miao F., Lau C. N.. Nano Lett.[J], 2008, 8(3): 902—907 [4]Lee C., Wei X., Kysar J. W., Hone J.. Science[J], 2008, 321(5887): 385—388 [5]Zhang Y., Tan Y. W., Stormer H. L., Kim P.. Nature[J], 2005, 438: 201—204 [6]Liang J., Wang Y., Huang Y., Ma Y., Liu Z., Cai J., Zhang C., Gao H., Chen Y.. Carbon[J], 2009, 47(3): 922—925 [7]Ramanathan T., Abdala A. A., Stankovich S., Dikin D. A., Herrera M., Piner R. D., Adamson D. H., Schniepp H. C., Chen X., Ruoff R. S., Nguyen S. T., Aksay I. A., Prud'homme R. K., Brinson L. C.. Nano[J], 2008, 96: 327—330 [8]Stankovich S., Piner R. D., Nguyen S. T., Ruoff R. S.. Carbon[J], 2006, 44(15): 3342—3347 [9]Verdejo R., Barroso-Bujans F., Rodriguez-Perez M. A., Saja J. A., Lopez-Manchado M. A.. J. Mater. Chem.[J], 2008, 18: 2221—2226 [10]Ansari S., Giannelis E. P.. Journal of Polymer Science[J], 2009, 47: 888—897 [11]Watcharotone S., Dmitriy A. D., Stankovich S., Piner R., Jung I., Dommett G. H. B., Evmenenko G., Wu S., Chen S., Liu C., Nguyen S. T., Ruoff R. S.. Nano Lett.[J], 2007, 7(7): 1888—1892 [12]Chao X., Wang X., Zhu J.. J. Phys. Chem. C[J], 2008, 112(50): 19841—19845 [13]Si Y., Samulski E. T.. Nano Lett.[J], 2008, 8(6): 1679—1682 [14]Park S., An J., Jung I., Piner R. D., An S. J., Li X., Velamakanni A., Ruoff R. S.. Nano Lett.[J], 2009, 9(4): 1593—1597 [15]Hummers W., Offeman R.. Ann. Chem. Soc.[J], 1958, 80: 1339 [16]Lotya M., Hernandez Y., King P. J., Smith R. J., Nicolos V., Karlsson L. S., Blighe F. M., De S., Wang Z., Mcgovern I. T., Duesberg G. S., Coleman J. N.. J. Am. Chem. Soc.[J], 2009, 131(10): 3611—3620 [17]He H., Klinowski J., Forster M., Lerf A.. Chemical Physics Letters[J], 1998, 287(1/2): 53—56 [18]Wang J., Han Z. D.. Polym. Adv. Technol.[J], 2006, 17: 335—340