Formation of Fe Nanoparticles by Ion Implantation Technique for Catalytic Graphitization of a Phenolic Resin

Quantum Beam Science

Masaki Sugimoto¹  Tetsuya Yamaki¹  Yasunari Maekawa¹  Akira Idesaki¹  Shunya Yamamoto¹ 

[1] Department of Advanced Functional Materials Research, National Institutes for Quantum and Radiological Science and Technology (QST), Takasaki 370-1292, Japan;

关键词: ion implantation;    fe nanoparticle;    carbon precursor polymer;    catalytic graphitization;   

DOI  :  10.3390/qubs4010011

来源: DOAJ

【 摘 要 】

Ion implantation technique was employed to introduce iron nanoparticles (Fe NPs) into a carbon precursor polymer with the aim of forming of a graphitic nanostructure through catalytic graphitization by the introduced Fe NPs. A phenolic resin was implanted by 100 keV Fe⁺ ions with ion fluence of 1 × 10¹⁴−1 × 10¹⁶ ions/cm² at ambient temperature under vacuum, and subsequently heat-treated at 800 °C in a nitrogen gas atmosphere. It was found that the particle size of Fe NPs could be controlled in the range of 5−30 nm by the Fe⁺ ion fluence. Additionally, it was found that a nanosized turbostratic graphite structure with mean interlayer distance of 0.3531 nm, which is consisted of shell-like carbon layers and intricately distorted carbon layers, was formed around the Fe NPs. The ion implantation technique is one of the advantageous ways to introduce size-controlled fine metal NPs which are effective for the formation of graphitic nanostructure from a carbon precursor polymer.

【 授权许可】

Unknown