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Mesoporous Organic/Inorganic Hybrid Materials with Frank-Kasper Phases Templated by an Unusual Linear Symmetry Diblock Copolymer
Macromolecular Rapid Communications ( IF 4.6 ) Pub Date : 2021-07-03 , DOI: 10.1002/marc.202100302
Wei-Cheng Chen, Yuan-Tzu Liu, Shiao-Wei Kuo

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.

中文翻译:

具有由不寻常的线性对称二嵌段共聚物模板化的 Frank-Kasper 相的介孔有机/无机杂化材料

在这项研究中,作者使用一种不寻常的线性对称聚(环氧乙烷-b-己内酯)(PEO-b-PCL)二嵌段共聚物作为酚醛/双层倍半硅氧烷(DDSQ)杂化物中的模板来合成具有Frank-Kasper (FK) 相(例如,σ、A15、H 和 Z 相)。这些 FK 结构是第一个使用嵌段共聚物制备的,也是第一个存在于介孔材料中的结构。作者的中孔碳/ DDSQ杂种显示高电容(764 F G -1以0.5 g的电流-1和98.4%容量保持超过2000个循环),从它们的高表面积,高孔体积,和可调浓度引起N、O 和 Si 杂原子。
更新日期:2021-09-07
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