• 文献标题:   One-step green synthesis and dispersion characteristics of silver/graphene core/shell-structure nanocomposites
  • 文献类型:   Article
  • 作  者:   KIM SW, PARK JH, SHIN SH, SONG YI, SUH SJ
  • 作者关键词:   graphenemetal nanocomposite, coreshell structure, green synthesi, electrical explosion for wire method, dispersion propertie
  • 出版物名称:   CARBON LETTERS
  • ISSN:   1976-4251 EI 2233-4998
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1007/s42823-021-00286-7 EA OCT 2021
  • 出版年:   2022

▎ 摘  要

Silver/graphene core/shell nanocomposites were synthesized through a one-step electric explosion of wire method using only silver wires and ethanol. The morphology of the graphene shell structures can be easily formed by alternating the solvent from deionized water to ethanol. Transmission electron microscopy revealed that the size of the prepared silver/graphene core/shell nanocomposites was in the 10-110 nm range. The Raman spectra showed the formation of graphene shells on silver. A possible formation mechanism of the silver/graphene core/shell nanocomposites is proposed in this study. The crystallinity of the nanoparticles was investigated via X-ray diffraction. The graphene on the surfaces of the nanocomposites containing functional groups was analyzed through Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy analyses. Zeta potential and dynamic light scattering analyses were performed to determine the dispersion characteristics of the nanocomposites when redispersed in other solvents.