| 학회 |
한국재료학회 |
| 학술대회 |
2016년 가을 (11/16 ~ 11/18, 경주 현대호텔) |
| 권호 |
22권 2호 |
| 발표분야 |
B. 나노화학/바이오 재료 분과 |
| 제목 |
액중전기폭발법을 이용한 그래핀/구리 나노입자 분산특성 |
| 초록 |
We have demonstrated an environmentally friendly and efficient route for the preparation of functionalized multi-layer graphene-coated copper nanoparticles by a one-step wire explosion process in isopropyl alcohol. The morphology and particle size of the nanoparticles were characterized by high-resolution transmission electron microscopy and dynamic light scattering. The structure and physiochemical nature of the products were investigated using Fourier transform infrared spectroscopy and X-ray powder diffraction. The results of Fourier transform infrared spectroscopy and Raman spectroscopy showed that functionalized graphite readily oxidized to form epoxide, carboxyl, and hydroxyl groups that were chemically bonded to the graphene. High-resolution transmission electron microscopy showed that graphene layers were present with between 3 to 10 layers in thickness. The X-ray powder diffraction results showed high intensity peaks at 43.36° (111), 50.52° (200), and 74.14° (220), corresponding to the crystal structure of the face centered cubic phase of copper. The stability of functionalized multi-layer graphene-coated copper nanoparticles was confirmed by zeta-potential and Turbiscan analysis. The results indicated that during explosion in isopropyl alcohol, functionalized multi-layer graphene-coated copper nanoparticles greatly affect the stability of the dispersion. This study confirmed the dispersion behavior of functionalized multi-layer graphene-coated copper nanoparticles and showed that their properties depend on the functional groups generated during the wire explosion method when carried out in isopropyl alcohol. |
| 저자 |
이정우, 김선우, 김석훈, 신세희, 박정호, 송영일, 서수정
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| 소속 |
성균관대 |
| 키워드 |
<P>그래핀/구리나노입자; 액중전기폭발법; 분산</P>
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| E-Mail |
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