Synthesis of nickel nanoparticles on multi-walled carbon nanotubes by gamma irradiation

被引：28

作者：

Rao, Vivek M. ^{[1
]}

Castano, Carlos H. ^{[2
]}

Rojas, Jessika ^{[2
]}

Abdulghani, Ahlam J. ^{[3
]}

机构：

[1] Missouri Univ Sci & Technol, Dept Chem & Biol Engn, Rolla, MO 65409 USA

[2] Missouri Univ Sci & Technol, Dept Min & Nucl Engn, Rolla, MO 65409 USA

[3] Univ Baghdad, Coll Sci, Dept Chem, Baghdad, Iraq

来源：

RADIATION PHYSICS AND CHEMISTRY | 2013年 / 89卷

关键词：

Nickel; Nanoparticles; Carbon nanotubes; Gamma-ray; Radiation induced chemistry; HYDROGEN STORAGE; HEAT-TRANSFER; TITANIUM; YIELDS;

D O I：

10.1016/j.radphyschem.2013.04.006

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：

Multi-walled carbon nanotubes (MWCNTs) were used as a substrate for nickel nanoparticles production. Nickel nanoparticles of average sizes between 9 and 16 nm were synthesized by gamma irradiation of aqueous solutions containing nickel sulfate or nickel chloride as precursors. MWCNTs were acid treated and poly vinyl pyrrolidone (PVP, m-44,000) or sodium dodecyl sulfate (SDS) were used as stabilizers. Isopropanol was used as a scavenger of hydroxyl radicals, and deionized (DI) water as a solvent. Gamma irradiation was carried out at room temperature and ambient pressure in a Co-60 gamma source at doses of 30, 40, 50, and 60 kGy. The nickel nanoparticles were characterized by transmission electron microscopy (TEM), scanning transmission electron microscopy (STEM), and X-ray photoelectron spectroscopy (XPS). By controlling the dose and stabilizer's concentrations, nanoparticles with different sizes were obtained. Poly vinyl pyrrolidone (PVP) was found to be more efficient at preventing coalescence of Ni seeds than sodium dodecyl sulfate (SOS). Published by Elsevier Ltd.

引用

页码：51 / 56

页数：6

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