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We use continuum elasticity theory to revise scaling laws for radial breathing-like and shear-like vibration modes in quasi-2D nanostructures including finite-width nanoribbons and finite-size thin circular discs. Such modes can be observed spectroscopically in corresponding nanostructures of graphene and phosphorene and can be determined numerically by atomistic ab initio density functional theory...
Fundamental research of sulfur redox reactions on well-defined controlled model electrode surfaces can provide new information to design high-performance lithium-sulfur batteries. Herein, we study the electrochemical reduction and oxidation of sulfur on the nanostructured HOPG electrodes with pure basal planes, step plans, and pure edge planes. Our results directly indicate that electrochemical reduction...
A flowerlike C/Fe2O3 nanosheet assembly, in which the surface is coated by a hydrothermal carbon (HTC) layer with thickness of 3–5 nm, has been successfully synthesized via a one-step hydrothermal strategy. Due to the coated HTC layer, the C/Fe2O3 nanosheet assembly exhibits the significantly enhanced efficiency for the removal of organic pollution, including the physically adsorption capacity and...
We proposed here a one-pot route to prepare resorcinol/formaldehyde (RF) resin-based carbon materials with highly ordered mesostructures in an aqueous media. Compared with other techniques, the synthesis is a single-step process; neither prepolymerization nor thermal solidification is needed. The crucial difference to the previous methods is that the commonly used formaldehyde is replaced with hexamine...
Semiconducting graphene oxide/polyaniline (GO/PANI) composite particles for potential electrorheological (ER) fluid applications were synthesized by the in situ dispersion polymerization of aniline in the presence of GO particles, which were prepared using a modified Hummers method. The electroresponsive ER characteristics of the composite when dispersed in silicone oil exhibited a phase transition...
Hexamine has been used as a release source of formaldehyde towards the self-assembly synthesis of resorcinol/formaldehyde (RF) resin-based mesoporous carbons under hydrothermal conditions. The obtained mesoporous carbons exhibit the micrometer-sized, sphere-like morphology and a high surface area. The use of hexamine instead of formaldehyde efficiently harnesses the organic–organic self-assembly of...
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