Fluoroalkyl-silane-modified 3D graphene foam with improved Joule-heating effects and high hydrophobicity-derived anti-icing properties
Fluoroalkyl-silane-modified 3D graphene foam with improved Joule-heating effects and high hydrophobicity-derived anti-icing properties
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氟烷基硅烷改性 3D 石墨烯泡沫具有改进的焦耳热效应和高疏水性防冰性能
DOI：
10.1007/s10853-017-1536-1
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发表时间：
2017
影响因子：
4.5
通讯作者：
Huang Boyun
中科院分区：
文献类型：
--
作者：
Zhang Qiangqiang;Zhang Baoqiang;Yu Yikang;Zhao Keren;He Pingge;Huang Boyun
通过泡沫镍模板化学气相沉积和随后的改性制备了具有分级多孔微结构的氟烷基硅烷（FS）改性的三维（3D）石墨烯泡沫（GF）复合材料（FS-GF）。作为导电框架和疏水多孔基底的3D GF接枝有FS，以进一步改善由于其长的非极性分子链和大量的疏水/硅官能团而导致的疏水性。具有高电导率（~650 S/m）的多孔FS-GF被功能化为用于气流的焦耳加热网，其同时表现出快速加热速率、高转换效率和均匀的温度分布。此外，FS-GF具有上级金属和无机涂层的自清洁和防冰性能。FS-GF的优异性能表明了在多尺度下使用分级结构和功能分子基团的化学修饰来功能化3D石墨烯复合材料的潜力。
A fluoroalkyl-silane (FS)-modified three-dimensional (3D) graphene foam (GF) composite (FS-GF) with a hierarchical porous microstructure was fabricated via a nickel foam template chemical vapor deposition and followed modification. The 3D GF, as an electrically conductive framework and hydrophobic porous substrate, was grafted with FS to further improve the hydrophobicity due to its long non-polar molecular chains and numerous fluoric/silicon functional groups. Porous FS-GF with high electrical conductivity (~650 S/m) is functionalized as a Joule-heating mesh for airflow, which synchronously demonstrates rapid heating rates, high conversion efficiencies, and uniform temperature distributions. Moreover, FS-GF exhibits self-cleaning and anti-icing properties that are superior to metallic and inorganic coatings. The outstanding performances of FS-GF suggest the potential for functionalizing 3D graphene composites using hierarchical structures at the multi-scale and chemical modifications of functional molecular groups.
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