材料科学
纳米颗粒
聚合物
纳米技术
纳米结构
纳米尺度
碳纤维
复合数
模板
碳纳米颗粒
图层(电子)
等级制度
复合材料
经济
市场经济
作者
Dan Cheng,Jun Zhang,Jijiang Fu,Hao Song,Chengzhong Yu
出处
期刊:Science Advances
[American Association for the Advancement of Science (AAAS)]
日期:2023-10-04
卷期号:9 (40)
被引量:6
标识
DOI:10.1126/sciadv.adi7502
摘要
Assembly of silica and polymer in the absence of surfactant templates is an emerging strategy to construct intricate nanostructures, whereas the underlying mechanism and structural versatility remain largely unexplored. We report a hierarchical spatial assembly strategy of silica-polymer composites to produce silica and carbon nanoparticles with unprecedented structures. The assembly hierarchy involves a higher length scale asymmetric A-B-A core-shell-type spatial assembly in a composite sphere, and a nanoscale assembly in the middle layer B in which the silica/polymer ratio governs the assembled structures of silica nanodomains. Through an in-depth understanding of the hierarchical spatial assembly mechanism, a series of silica and carbon nanoparticles with intriguing and controllable architectures are obtained that cannot be easily achieved via conventional surfactant-templating approaches. This work opens an avenue toward the designed synthesis of nanoparticles with precisely regulated structures.
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