One-pot synthesis of Au nanoparticles/reduced graphene oxide nanocomposites and their application for electrochemical [H.sub.2][O.sub.2]], glucose, and hydrazine sensing

In this paper, Au nanoparticles/reduced graphene oxide (AuNPs/rGO) nanocomposites were prepared through a one-pot strategy, carried out by heating the mixture of HAu[Cl.sub.4] and graphene oxide solution at 90°C under alkaline condition. The resultant AuNPs/rGO nanocomposites were found to exhibit good catalytic performance toward [H.sub.2][O.sub.2] reduction and oxidation as well as hydrazine oxidation. The electrochemical sensing application of the nanocomposites for [H.sub.2][O.sub.2], glucose, and hydrazine was also demonstrated successfully. Keywords Au nanoparticles . Reduced graphene oxide . Electrochemical detection . [H.sub.2][O.sub.2] . Glucose . Hydrazine
Introduction Graphene, a two-dimensional aromatic sheets composed of [sp.sup.2]-bonded carbon atoms, has received enormous interest in various areas of research owing to its large specific surface area, excellent thermal and [...]