纳米材料
材料科学
胶体
甲壳素
碳纳米纤维
纳米纤维
纳米技术
色散(光学)
化学工程
水溶液
碳纤维
相(物质)
碳纳米管
壳聚糖
化学
复合材料
有机化学
复合数
物理
光学
工程类
作者
Guo Tianyu,Zhangmin Wan,Mahyar Panahi‐Sarmad,Gabriel Banvillet,Yi Lu,Shiva Zargar,Jie Tian,Feng Jiang,Yimin Mao,Qingshi Tu,Orlando J. Rojas
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-05-31
标识
DOI:10.1021/acsnano.4c00549
摘要
Chitin nanofibrils (ChNF) sourced from discarded marine biomass are shown as effective stabilizers of carbon nanomaterials in aqueous media. Such stabilization is evaluated for carbon nanotubes (CNT) considering spatial and temporal perspectives by using experimental (small-angle X-ray scattering, among others) and theoretical (atomistic simulation) approaches. We reveal that the coassembly of ChNF and CNT is governed by hydrophobic interactions, while electrostatic repulsion drives the colloidal stabilization of the hybrid ChNF/CNT system. Related effects are found to be transferable to multiwalled carbon nanotubes and graphene nanosheets. The observations explain the functionality of hybrid membranes obtained by aqueous phase processing, which benefit from an excellent areal mass distribution (correlated to piezoresistivity), also contributing to high electromechanical performance. The water resistance and flexibility of the ChNF/CNT membranes (along with its tensile strength at break of 190 MPa, conductivity of up to 426 S/cm, and piezoresistivity and light absorption properties) are conveniently combined in a device demonstration, a sunlight water evaporator. The latter is shown to present a high evaporation rate (as high as 1.425 kg water m
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