Electrochemically exfoliated graphene
(EEG) is a new generation
of high-quality graphene that holds great promise for the construction
of hybrid materials. However, the assembly of EEG hybrids with well-defined
nanostructures has remained a major challenge. In this study, we demonstrate
a bottom-up approach toward the assembly of EEG sheets with a series
of functional nanoparticles (Si, Fe<sub>3</sub>O<sub>4</sub>, and
Pt NPs) into two-dimensional sandwich-like hybrid nanostructures.
Polyaniline in the emeraldine base form functions as a versatile dopant
to couple NPs onto EEG through either electrostatic interactions or
hydrogen bonding. This protocol enables processing and assembly of
EEG using an economical pathway, for which we further demonstrate
the potential application of EEG-Si hybrids as high-performance anode
material for lithium storage
