• 文献标题:   High-Yield Continuous-Flow Synthesis of Spheroidal C-60@Graphene Composites as Supercapacitors
  • 文献类型:   Article
  • 作  者:   ALSULAM IK, ALHARBI TMD, MOUSSA M, RASTON CL
  • 作者关键词:  
  • 出版物名称:   ACS OMEGA
  • ISSN:   2470-1343
  • 通讯作者地址:   Flinders Univ S Australia
  • 被引频次:   0
  • DOI:   10.1021/acsomega.9b02656
  • 出版年:   2019

▎ 摘  要

Graphene spheres confining fullerene C-60 are quantitatively formed under high-shear and continuous-flow processing using a vortex fluidic device (VFD). This involves intense micromixing a colloidal suspension of graphite in DMF and an o-xylene solution of C-60 at room temperature in the absence of surfactants and other auxiliary substances. The diameters of the composite spheres, C-60@graphene, can be controlled with size distributions ranging from 1.5 to 3.5 mu m, depending on the VFD operating parameters, including rotational speed, flow rate, relative ratio of C-60 to graphite, and the concentration of fullerene. An electrode of the composite material has high cycle stability, with a high areal capacitance of 103.4 mF cm(-2), maintaining its capacitances to 24.7 F g(-1) and 86.4 mF cm(-2) (83.5%) at a high scan rate of 100 mV s(-1).