Graphene aerogel and its composites: synthesis, properties and applications
Graphene aerogel and its composites: synthesis, properties and applications
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DOI：
10.1007/s10934-022-01230-4
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发表时间：
2022-03
影响因子：
2.6
通讯作者：
A. Kasar;Siyu Tian;Guoping Xiong;P. Menezes
中科院分区：
文献类型：
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作者：
A. Kasar;Siyu Tian;Guoping Xiong;P. Menezes
石墨烯因其优异的固有特性（例如较低的密度、较高的机械强度、较高的导热率等）而成为许多应用中有吸引力的材料。然而，由于尺寸限制，它已被用作添加剂材料。为了克服尺寸限制而不影响二维石墨烯片的固有特性，研究人员通过不同的合成技术开发了石墨烯气凝胶（GA）。由于其广泛的应用，GA已成为气凝胶材料中新兴的轻质结构。在这篇综述文章中，通过考虑 GA 的结构参数（例如孔径、石墨烯片排列和壁厚）来讨论 GA 的机械性能，因为 GA 的机械性能是其在任何领域应用之前的重要标准。还强调了在合成过程中可以改变结构参数以获得所需的机械性能。 GA 的应用已在聚合物复合材料领域进行了深入讨论，以及 GA-聚合物结构如何通过从水中分离溢出的石油并去除水中的有机污染物来帮助产生更清洁的环境。此外，GA 在具有合适的纳米材料添加剂的各种其他应用中的潜力也得到了强调。
Graphene is an attractive material for many applications due to excellent inherent properties such as lower density, high mechanical strength, higher thermal conductivity, etc. However, it has been used as an additive material due to size limitation. To overcome the size limitation without affecting the inherent properties of 2D graphene sheets, researchers have developed graphene aerogel (GA) by different synthesis techniques. GA has become an emerging light-weight structure in the group of aerogel materials because of various applications. In this review article, the mechanical properties of GA have been discussed by considering the structural parameters of GA, such as pore size, graphene sheet alignments, and wall thickness, because the mechanical performance of the GA is an important criterion prior to its application in any field. It has also been highlighted that the structural parameters can be altered during synthesis to achieve desired mechanical properties. Applications of GA have been thoroughly discussed in the field of polymer composites and how GA-polymer structures can help to generate a cleaner environment by separating spilled oil from water and removing organic pollutants from water. In addition, potential of GA for various other applications with suitable nano material additives have been highlighted.