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氧化石墨烯和石墨烯的高浓度加工、致密化及应用

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由紧密堆叠的石墨烯片组成的致密石墨烯组件具有出色的化学稳定性和优异的力学、热学和电学性能。致密石墨烯组件不存在多孔石墨烯气凝胶中密度低、力学强度低、导电性差和导热性差等问题,是未来便携式电子和智能设备的理想材料。本文对制备方法进行了总结,包括利用机械分散、蒸发浓缩、离心浓缩和液相剥离法获得的高浓度氧化石墨烯(GO)和石墨烯分散液,以及利用真空辅助过滤、界面自组装和压制成型法获得的二维(2D)致密石墨烯基薄膜和三维(3D)致密石墨烯基结构,并评估了各种方法的优缺点。此外,还总结了致密石墨烯基组件在储能、热管理和电磁干扰(EMI)屏蔽方面的应用。最后,概述了致密石墨烯组件在未来研究中面临的挑战和前景。本综述为探索和开发大规模、低成本的制造技术和面向应用的致密石墨烯组件提供参考。
A review of the high-concentration processing,densification,and applications of graphene oxide and graphene
Dense graphene assemblies,composed of tightly stacked graphene sheets,have outstanding chemical stability and ex-cellent mechanical,thermal,and electrical properties.They also do not have the problems of low density,low mechanical strength,poor electrical conductivity,or poor thermal conductivity found in porous graphene aerogels,making them ideal materials for future portable electronic and smart devices.We summarize work on high-concentration graphene oxide(GO)and graphene dispersions prepared by mechanical dispersion,evaporation concentration,centrifugal concentration,and liquid phase exfoliation,as well as two-dimensional(2D)dense graphene-based films and three-dimensional(3D)dense graphene-based structures prepared by vacuum-as-sisted filtration,interfacial self-assembly,and press-forming,and evaluate the advantages and disadvantages of each method.The ap-plications of dense graphene-based assemblies in energy storage,thermal management,and electromagnetic interference(EMI)shielding are summarized.Finally,their challenges and prospects in future research are outlined.This review provides a reference for exploring and developing their large-scale,cost-effective manufacture and use.

High-concentration dispersionDense graphene-based assembly2D film3D architectureApplication

王悦、罗家亮、鲁哲宏、狄俊、王苏炜、姜炜

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南京理工大学 化学与化工学院,国家特种超细粉体工程技术研究中心,江苏 南京 210094

中国科学院合肥物质科学研究院 强磁场科学中心,安徽 合肥 230031

高浓度分散液 致密石墨烯基组件 二维薄膜 三维结构 应用

中国博士后科学基金江苏省自然科学基金中央高校基本科研业务费专项国家自然科学基金国家自然科学基金国家自然科学基金

2021M690134BK2021035330920041106220051442200514552203023

2024

新型炭材料
中国科学院山西煤炭化学研究所

新型炭材料

CSTPCD北大核心
影响因子:0.685
ISSN:1007-8827
年,卷(期):2024.39(3)
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