• 文献标题:   A novel 3D porous graphene foam prepared by chemical vapor deposition using nickel nanoparticles: Electrochemical determination of levodopa in the presence of uric acid
  • 文献类型:   Article
  • 作  者:   WANG Z, YUE HY, YU ZM, HUANG S, GAO X, WANG B, SONG SS, GUAN EH, WANG WQ, ZHANG HJ
  • 作者关键词:   nickel nanoparticle, graphene foam, chemical vapor deposition, levodopa, uric acid
  • 出版物名称:   MICROCHEMICAL JOURNAL
  • ISSN:   0026-265X EI 1095-9149
  • 通讯作者地址:   Harbin Univ Sci Technol
  • 被引频次:   6
  • DOI:   10.1016/j.microc.2019.02.067
  • 出版年:   2019

▎ 摘  要

Spherical nickel nanoparticles were prepared by an N2H4-based solution reduction route. Then, graphene was deposited on the template of nickel nanoparticles by chemical vapor deposition (CVD) at a high temperature. After etching nickel, small-sized, porous and free-standing 3D graphene foam (3D GF) was obtained. It was transferred on the indium tin oxide (ITO) glass (3D GF/ITO) for electrochemical determination of levodopa in the presence/absence of uric acid. The results show that the pore size of the 3D GF is similar to 1 mu m. The electrode shows a high sensitivity of 0.24 mu A.mu M-1 for the detection of levodopa. The electrode also shows a low measured limit of detection, superior selectivity, reproducibility and stability. Meanwhile, it shows a great potential in the clinical application.