Improving the surface properties of multi-walled carbon nanotubes after irradiation with gamma rays

被引：66

作者：

Safibonab, B. ^{[1
,2
]}

Reyhani, A. ^{[1
]}

Golikand, A. Nozad ^{[1
]}

Mortazavi, S. Z. ^{[1
]}

Mirershadi, S. ^{[1
]}

Ghoranneviss, M. ^{[2
]}

机构：

[1] Mat Res Sch, Tehran, Iran

[2] Islamic Azad Univ, Plasma Phys Res Ctr, Tehran, Iran

来源：

APPLIED SURFACE SCIENCE | 2011年 / 258卷 / 02期

关键词：

Gamma-ray irradiation; Multi-walled carbon nanotubes; Surface properties; Raman spectroscopy; XPS; ELECTROCHEMICAL HYDROGEN STORAGE; RESONANT RAMAN-SCATTERING; SINGLE-WALL; PROBE MICROSCOPY; SULFURIC-ACID; PURIFICATION; SPECTROSCOPY; RADIATION; ADSORPTION; DEFECTS;

D O I：

10.1016/j.apsusc.2011.08.085

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 effects of gamma-irradiation on the modification of the surface and structure of multi-walled carbon nanotubes were studied. Gamma-irradiation affected the graphitization properties of functional groups, and decreased the diameter of multi-walled carbon nanotubes. The irradiated multi-walled carbon nanotubes with the absorbed dose of 100 kGy exhibited a larger specific surface area and microporous volume as compared with the other samples. The Raman spectroscopy and X-ray photoelectron spectroscopy showed that the interaction between the gamma-irradiation and the multi-walled carbon nanotubes with the absorbed dose of 150 kGy destroyed the nanostructure of carbons, leading to the formation of diamond-like structures and carbon oxides. In addition, gamma-irradiation with the absorbed dose of 100 kGy improved multi-walled carbon nanotubes graphitization and surface properties while at higher absorbed dose (150 kGy), it induced damaged structures (sp(3) bonds and oxygen compositions). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：766 / 773

页数：8

共 55 条

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