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Existing methodological strategies for the doping of nitrogen (N) atoms in carbon materials usually contain more than one species with indefinite N content, which made it difficult to study the role of each type of N atoms played duing the doping and severely restrict the wide application. Herein, we reported a developed synthetic strategy for preparing carbonous materials contained with specific...
To explore the effect of tube sizes and filling process on dielectric properties of carbon nanotubes (CNTs), CNTs with various diameters and lengths were applied to synthesize Fe-filled CNTs through wet-chemical method. The permittivities of the composites of CNTs and paraffin rely on the dispersion state (agglomeration) of CNTs in polymer matrices. During the filling process, CNTs with diverse tube...
Ising model with the anisotropy is abstracted based on a nano-graphene sandwich-like structure. The system consists of a ferromagnetic middle layer and two antiferromagnetic layers on the top and under the bottom. Multiple spin states are employed to the analysis of magnetic behavior for graphene-like molecules. The effective-field theory with correlations has been successfully applied to this, and...
We synthesized a set of surface-enhanced Raman scattering (SERS) substrates with hybrid-structures including Ag nanoparticles (AgNPs), AgNPs on top of few-layer graphene (AgNPs-FLG), AgNPs underneath few-layer graphene (FLG-AgNPs), sandwich structure (FLG-AgNPs-FLG) and few-layer graphene (FLG). The experimental results indicate that FLG can effectively protect AgNPs against aerobic oxidation (up...
Indium tin oxide (ITO) electrodes modified chemically with self-assembled monolayers (SAMs) of C 60 -perylenetetracarboxylic diimide-C 60 triad have been designed for the first time to act as an efficient light-to-current converter in molecular devices. The monolayers were characterized using UV–Vis, X-ray photoelectron spectroscopy and atomic force microscopy. Photoelectrochemical...
Four exfoliated graphite (EG) samples with exfoliation volume ranging from 102.6 to 267.7 mL/g were prepared. The volume of worm-like particles before sorption was estimated by analyzing the area occupied by worm-like particles in slices cut from the EG block formed using paraffin. The results show that both the volume in worm-like particles, V n , and that among them, V m , increase...
Exfoliated graphite (EG) was prepared from graphite intercalation compounds (GICs) synthesized electrochemically with different electricity consumption from 10.83 to 40.00 A h/kg. Effects of electricity consumption on the synthesis of GICs and of exfoliation temperature on different parameters of EG, i.e. exfoliation volume, volatile content, specific surface area and pore volume measured by mercury...
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