The information of cubic mesoporous carbon

Well-ordered three-dimensional (3D) Im3m-type mesostructured carbon with a cavity size of 4.59 nm was synthesized using mesoporous SBA-16 silica having a size of 7.91 nm of the cavity as a model hard and characterized by means of SAXS, nitrogen adsorption techniques, and TEM TGA. characterization data indicated that the carbon replica is really mesostructured mesoporous SBA-negative 16 silica. replica carbon has a BET surface of 994 m2 g-1 and a pore volume of 0.72 cm3 g-1.The formation mechanism of the cubic mesoporous carbon, FDU-16, synthesized by evaporation-induced self-assembly (EISA) was investigated at the molecular level by electron paramagnetic resonance (EPR) spectroscopic techniques.

This material is synthesized using F127 pluronic block copolymer [poly(ethylene oxide)–poly(propylene oxide)–poly(ethylene oxide) (PEO106-PPO70-PEO106)] as a structure-directing agent (template) and phenolic resol as a carbon precursor. Using two spin probes derived from pluronics with PEO and PPO chains of different lengths that are designed to sense different regions of the system, we followed the evaporation and thermopolymerization stages of the synthesis in situ. To make such studies possible, we have used a polyurethane foam support, placed in the EPR tube, which allows for the efficient solvent evaporation as required for EISA.
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