期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 15, 期 11, 页码 9014-9019出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2015.11583
关键词
Nanoparticle; Multi-Layer Graphene Coated Copper Nanoparticle; Wire Explosion Process; Liquid Media
类别
资金
- National Research Foundation (NRF) of Korea
- Regional Innovation Center (RIC) of Korea - Ministry of Education (MOF) [2013R1A1A2061254]
- Ministry of Trade, Industry and Energy (MTIE) of Korea
- Information Technology Research Center (ITRC) through Ministry of Science, ICT and Future Planning (MSIP) of Korea [1415128915]
- National Research Foundation of Korea [2013R1A1A2061254] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We report a simple approach for the production of copper nanoparticles by a wire explosion process that creates different structures in deionized (DI) water versus isopropyl alcohol (IPA) liquid media. In DI water, copper nanoparticles (CNs) are formed, while multi-layer graphene-synthesized copper nanoparticles (MGCNs) with a high degree of graphitization are formed in the IPA liquid media. The nanoparticles have an average diameter ranging from 10 nm to 300 nm and a quasi-spherical morphology. The morphologies and sizes of nanoparticles formed via this method were characterized by high-resolution transmission electron microscopy (HRTEM), field-emission scattering electron microscopy (FESEM), and analysis of dynamic light scattering (DLS). The microstructures and chemical bonding of the nanoparticles were studied by X-ray diffraction (XRD), Raman spectra measurement, and X-ray photoelectron spectroscopy (XPS). This results show an easily reproducible way to synthesize metal-core nanoparticles with multi-layer graphene shells based onto the liquid media used during synthesis. These materials can be used in the field of energy storage and as additives in the near future.
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