The effect of gamma-irradiation on few-layered graphene materials

被引：111

作者：

Anson-Casaos, A. ^{[1
]}

Puertolas, J. A. ^{[2
]}

Pascual, F. J. ^{[2
,3
]}

Hernandez-Ferrer, J. ^{[1
]}

Castell, P. ^{[4
]}

Benito, A. M. ^{[1
]}

Maser, W. K. ^{[1
]}

Martinez, M. T. ^{[1
]}

机构：

[1] ICB CSIC, Inst Carboquim, Zaragoza 50018, Spain

[2] Univ Zaragoza, Dept Mat Sci & Technol EINA, I3A, E-50018 Zaragoza, Spain

[3] Acad Gen Mil, Ctr Univ Def Zaragoza, E-50090 Zaragoza, Spain

[4] Poligono Ind Empresarium, AITIIP Technol Ctr, Zaragoza 50720, Spain

来源：

APPLIED SURFACE SCIENCE | 2014年 / 301卷

关键词：

Graphene oxide; Graphene nanoribbons; Reduced graphene oxide; Gamma rays; Carbon lattice defects; WALLED CARBON NANOTUBES; FUNCTIONALIZED GRAPHENE; INDUCED REDUCTION; FACILE SYNTHESIS; OXIDE; NANORIBBONS; POLYPROPYLENE; POLYETHYLENE; CHEMISTRY; RADIATION;

D O I：

10.1016/j.apsusc.2014.02.057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of gamma-irradiation on the structure and composition of chemically synthesized few-layered graphene materials was studied. Fully oxidized graphene oxide and graphene nanoribbons, as well as their respective chemically post-reduced forms, were treated under gamma-irradiation in an air-sealed environment. Three different irradiation doses of 60, 90 and 150 kGy were applied. Structure and composition of the irradiated materials were analyzed by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). The XRD patterns were not affected by gamma-irradiation, and small changes were observed in the FTIR and TGA results. However, significant modifications were detected by Raman spectroscopy and XPS, particularly in the Raman G/D band intensity ratios and in the C1s XPS profiles. Comparatively, the changes in Raman and XPS spectra after gamma-irradiation were even greater than those occurring during the chemical reduction of graphene oxides. Our results indicate that the graphene carbon lattice was strongly affected by gamma-irradiation, but the materials experienced small variations in their oxygen content. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：264 / 272

页数：9

共 28 条

[1] A novel approach to the chemical stabilization of gamma-irradiated ultrahigh molecular weight polyethylene using arc-discharge multi-walled carbon nanotubes [J].