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Mesoporous carbon/graphene composites (MCG) have exhibited good electrochemical performances; however, the fixed mesoporous carbon, the low specific surface area, and porosity are the main obstacles in their application in supercapacitors. In this paper, mesoporous carbon microspheres/graphene composites (MCMG) were synthesized in situ via a soft template method and subsequent thermal reduction by using cetyltrimethylammonium bromide (CTAB) as the structure-directing agent, and aqueous mesophase pitch (AMP) and graphene oxide (GO) as the carbon sources. The strong electrostatic interaction between GO/CTAB and AMP promoted the self-assembly of CTAB and AMP to form the MCMG precursor. The results showed that the CTAB concentration and aging temperature have an important effect on the morphology and pore structure of the synthesized MCMG. The high aging temperature promoted the formation of mesoporous carbon spheres and its diameter increased with the increase in the concentration of CTAB. The as-prepared MCMG at the aging temperature of 140 °C had obvious spherical and layered carbon materials after carbonization at 900 °C. When the concentration of CTAB was 10.6 g L−1, the formed mesoporous carbon spheres with the diameter of 30–40 nm were uniformly dispersed among the layered graphenes in MCMG-140-0.2 (the aging temperature of 140 °C and the CTAB content of 0.2 g). In addition, its specific surface area was 1150.5 m2 g−1 and the mesopore size was centered at 4.3 nm, 7.9 nm, and 17.1 nm. Compared with the MCMG precursor, the ordered degree of the mesopores for MCMG was reduced due to the high temperature carbonization. Importantly, the specific capacitance of MCMG-140-0.2 at the current density of 0.1 A g−1 was as high as 356.3 F g−1. Moreover, the specific capacitance of MCMG-140-0.2 at 1 A g−1 remained at 278.5 F g−1, the capacitance retention was 92.1% after 6000 cycles, and the coulombic efficiency was over 98% at a high current density of 2 A g−1. Therefore, the as-prepared MCMG can be an excellent candidate for electrode materials in supercapacitors.

Mesoporous carbon/graphene composites (MCG) have exhibited good electrochemical performances; however, the fixed mesoporous carbon, the low specific surface area, and porosity are the main obstacles in their application in supercapacitors. In this paper, mesoporous carbon microspheres/graphene composites (MCMG) were synthesized

In order to explore and develop the exceptional performance of inorganic/organic hybrid materials, research into a suitable solvent system for use in electrospinning of silica-based inorganic/organic hybrid membranes with tunable performance was successfully conducted. Hexamethylene diisocyanate and polymethyl methacrylate were selected specifically on the basis of their characteristic features to be combined with inorganic silica gel in different solvents. Excellent flexibility of the silica/hexamethylene diisocyanate hybrid membrane was demonstrated and hydrophobic behavior with separation characteristics was confirmed for the silica/polymethyl methacrylate hybrid membrane.

A fairly general and direct synthesis for the preparation of silica microbelts with a novel stacked structure and controllable wetting behavior by using a combination of sol–gel chemistry and electrospinning techniques was explored successfully. The formation mechanism of the stacked structure and the potential application of the silica microbelts were confirmed.