聚丙烯腈
纳米片
材料科学
成核
纳米技术
碳纤维
薄膜
莲花效应
单层
化学工程
复合材料
聚合物
有机化学
复合数
化学
原材料
工程类
作者
Huaxin Gong,Diego Uruchurtu Patino,Ján Ilavský,Ivan Kuzmenko,Amnahir E. Peña-Alcántara,Chenhui Zhu,Aidan H. Coffey,Lukas Michalek,Ahmed Elabd,Xin Gao,Shucheng Chen,Chengyi Xu,Hongping Yan,Yuanwen Jiang,Weichen Wang,Yucan Peng,Yitian Zeng,Hao Lyu,Hee Moon,Zhenan Bao
出处
期刊:ACS Nano
[American Chemical Society]
日期:2023-09-05
卷期号:17 (18): 18392-18401
标识
DOI:10.1021/acsnano.3c05792
摘要
Carbon superstructures are widely applied in energy and environment-related areas. Among them, the flower-like polyacrylonitrile (PAN)-derived carbon materials have shown great promise due to their high surface area, large pore volume, and improved mass transport. In this work, we report a versatile and straightforward method for synthesizing one-dimensional (1D) nanostructured fibers and two-dimensional (2D) nanostructured thin films based on flower-like PAN chemistry by taking advantage of the nucleation and growth behavior of PAN. The resulting nanofibers and thin films exhibited distinct morphologies with intersecting PAN nanosheets, which formed through rapid nucleation on existing PAN. We further constructed a variety of hierarchical PAN superstructures based on different templates, solvents, and concentrations. These PAN nanosheet superstructures can be readily converted to carbon superstructures. As a demonstration, the nanostructured thin film exhibited a contact angle of ∼180° after surface modification with fluoroalkyl monolayers, which is attributed to high surface roughness enabled by the nanosheet assemblies. This study offers a strategy for the synthesis of nanostructured carbon materials for various applications.
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