Mesoporous Organic/Inorganic Hybrid Materials with Frank‐Kasper Phases Templated by an Unusual Linear Symmetry Diblock Copolymer
Wei‐Cheng Chen, Yuan‐Tzu Liu, Shiao‐Wei Kuo
Abstract
Abstract In this study the authors used an unusual linear symmetric poly(ethylene oxide‐b‐caprolactone) (PEO‐b‐PCL) diblock copolymer as a template within phenolic/double‐decker silsesquioxane (DDSQ) hybrids to synthesize mesoporous phenolic/DDSQ materials having Frank–Kasper (FK) phases (e.g., σ , A15, H, and Z phases). These FK structures are the first to have been prepared using a block copolymer and the first to exist in mesoporous materials. The authors' mesoporous carbon/DDSQ hybrids displayed high capacitance (764 F g −1 at a current of 0.5 A g −1 and 98.4% capacitance retention over 2000 cycles), arising from their high surface areas, high pore volumes, and tunable concentrations of N, O, and Si heteroatoms.