化学
聚合
自组装
化学工程
多孔性
溶剂
共聚物
碳纤维
介孔材料
氢键
球体
纳米技术
聚合物
分子
材料科学
催化作用
有机化学
复合材料
复合数
物理
天文
工程类
作者
Zhiqing Liu,Wei Li,Wenbo Sheng,Shiyu Liu,Rui Li,Qian Li,Danya Li,Shui Yu,Meng Li,Yongsheng Li,Xin Jia
摘要
Herein, we report a versatile solvent-mediated polymerization-induced self-assembly (PISA) strategy to directly synthesize highly N-doped hierarchically porous structured carbon spheres with a tunable meso-macroporous configuration. The introduction of intermolecular hydrogen bonds is verified to enhance the interfacial interactions between block copolymers, oil droplets, and polyphenols. Moreover, the dominant hydrogen-bond-driven interactions can be systematically manipulated by selecting different cosolvent systems to generate diverse porous structures from the transformation of micellar and precursor co-assembly. Impressively, hierarchically structured meso-macroporous N-doped carbon spheres present simultaneously tunable sphere sizes and mesopores and macropores, ranging from 1.2 μm, 9/50 and 227 nm to 1.0 μm, 40, and 183 nm and 480, 24, and 95 nm. As a demonstration, dendritic-like N-doped hierarchically meso-macroporous carbon spheres manifest excellent enzyme-like activity, which is attributed to the continuous mass transport from the multiordered porosity. The current study provides a new platform for the synthesis of novel well-defined porous materials.
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