Recent Advances in the Synthesis and Application of Three-Dimensional Graphene-Based Aerogels

Abstract

Three-dimensional graphene-based aerogels (3D GAs), combining the intrinsic properties of graphene and 3D porous structure, have attracted increasing research interest in varied fields with potential application. Some related reviews focusing on applications in photoredox catalysis, biomedicine, energy storage, supercapacitor or other single aspect have provided valuable insights into the current status of Gas. However, systematic reviews concentrating on the diverse applications of 3D GAs are still scarce. Herein, we intend to afford a comprehensive summary to the recent progress in the preparation method (template-free and template-directed method) summarized in Preparation Strategies and the application fields (absorbent, anode material, mechanical device, fire-warning material and catalyst) illustrated in Application of 3D GAs with varied morphologies, structures, and properties. Meanwhile, some unsettled issues, existing challenges, and potential opportunities have also been proposed in Future Perspectives to spur further research interest into synthesizing finer 3D GAs and exploring wider and closer practical applications.

Characterization of Phase Change Materials Fabricated with Cross-Linked Graphene Aerogels

“…The graphene aerogel is appropriate for fabricating polymer composite due to its high chemical stability and mechanical property [ 9 , 10 ]. In many cases, graphene oxide (GO) is synthesized and dispersed in distilled water to manufacture a 3D porous GO aerogel [ 11 , 12 ]. The functional groups of GO entail hydrogen bonding to reinforce the connection with graphene skeletons and produce a stable aerogel structure [ 13 , 14 ].…”

Design of Porous Graphene Materials from Organic Precursors

“…With these DOI: 10.1002/crat.202200186 exceptional properties, porous graphene has shown great promises for a variety of applications, especially for energy conversion and storage. [6][7][8][9][10] 2D graphene always suffers from re-aggregation problem due to the strong Van der Waals interaction during charge/discharge whereas, porous graphene not only facilitate rapid transport of electrons and ions, but also prevent agglomeration effectively. [11,12] At present, these porous graphene materials were prepared using template or template-free methods, where defects are being introduced in the graphene lattice planes by chemical etching, chemical activation, etc.…”

Size Effect of Graphene Oxide on Graphene-Aerogel-Supported Au Catalysts for Electrochemical CO2 Reduction

“…Three-dimensional (3D) graphene is a new type of carbon nanomaterial constructed from graphene nanosheets at the macro scale. It can maintain the excellent characteristics of graphene, overcome the π-π force between graphene layers, effectively block the self-disordered stacking of graphene nanosheets, and achieve the stability of its macro structure [6][7][8][9][10]. The structural characteristics of 3D graphene materials have shown unique advantages in applications such as electrochemical catalysis [11][12][13][14], energy storage [15][16][17][18], sensors [19,20], biomaterials [21][22][23], and environmental fields [24][25][26] and are also considered a new type of functional material with great potential.…”