ソフトテンプレート法による規則性メソポーラスカーボンの合成
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概要
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Ordered mesoporous carbons were synthesized by using an organic-organic self-assembly (soft-templating) method using resorcinol (R) / formaldehyde (F) and triblock copolymer Pluronic F127. A hexagonal mesostructure with channel like pores (COU-1) with a pore size of 4.7–5.8 nm and a 3D wormhole-like mesopore structure (COU-2) with a pore size of 4.8 nm were synthesized using precursor solutions with different mass ratios of F127/RF resin. The mesoporous carbons were activated by using KOH to improve their porosity. The KOH-activated COU-2 carbon showed superior capacitance compared to the COU-2 carbon and a commercial microporous carbon. Ultrathin carbon films with a monolayer of uniform mesopores were also synthesized on a silicon substrate by contacting a triblock copolymer film with a benzyl alcohol vapor followed by carbonization.
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