posted on 2017-10-09, 00:00authored byXu Wu, Yuqian Xing, David Pierce, Julia Xiaojun Zhao
Graphene,
one of the most attractive two-dimensional nanomaterials, has demonstrated
a broad range of applications because of its excellent electronic,
mechanical, optical, and chemical properties. In this work, a general,
environmentally friendly, one-pot method for the fabrication of reduced
graphene oxide (RGO)/metal (oxide) (e.g., RGO/Au, RGO/Cu2O, and RGO/Ag) composties was developed using glucose as the reducing
agent and the stabilizer. The glucose not only reduced GO effectively
to RGO but also reduced the metal precursors to form metal (oxide)
nanoparticles on the surface of RGO. Moreover, the RGO/metal (oxide)
composites were stabilized by gluconic acid on the surface of RGO.
The developed RGO/metal (oxide) composites were characterized using
STEM, FE-SEM, EDS, UV–vis absorption spectroscopy, XRD, FT-IR,
and Raman spectroscopy. Finally, the developed nanomaterials were
successfully applied as an electrode catalyst to simultaneous electrochemical
analysis of l-ascorbic acid, dopamine, and uric acid.