(3-Mercaptopropyl)trimethoxysilane-Assisted Synthesis of Macro- and Mesoporous Graphene Aerogels Exhibiting Robust Superhydrophobicity and Exceptional Thermal Stability

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• 作者：Shuai Zhou ; Xiang Zhou ; Wei Jiang ; Tianhe Wang ; Ning Zhang ; Yue Lu ; Liuhua Yu ; Zuozhu Yin
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2016
• 出版时间：February 3, 2016
• 年：2016
• 卷：55
• 期：4
• 页码：948-953
• 全文大小：436K
• ISSN：1520-5045

文摘

Robust superhydrophobic and exceptionally thermostable graphene aerogels exhibiting a three-dimensional macro- and mesoporous structure have been synthesized through a (3-mercaptopropyl)trimethoxysilane-assisted two-step route with natural drying. The facile synthetic process not only guarantees their excellent performance but also greatly improves their practical production rate. The prepared graphene aerogels hold excellent superhydrophobicity, for which water contact angle exceeded 160 degrees, even after 20 ethanol washing–drying cycles. Furthermore, the self-assembly functionalized-graphene sheets enhance the thermal stability of the nanocomposites, due to the good dispersion of functionalized-graphene sheets and the strong bonding between graphene sheets and polymer chains within the aerogels. The study implies a novel and practical methodology to efficiently fabricate three-dimensional composite materials with enhanced performances.