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| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
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| 1 | Jack Zhong | -- | 201 | 2026-09-28 07:06:21 | | | |
| 2 | Jack Zhong | -10 word(s) | 191 | 2026-09-28 07:09:16 | | |
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A graphene aerogel is a monolithic porous solid in which graphene sheets are assembled into a continuous three-dimensional network whose pores are filled with gas. The solid content is a fraction of a percent, so the density can fall below that of air while the sheet skeleton still carries load and conducts electricity; the assembly is driven by removing the solvent from a graphene oxide dispersion while the sheets restack face to face, and nanoparticles present during that step end up embedded in the walls rather than sitting on them [1]. Reduction can be performed by radiation instead of a chemical reagent, since gamma irradiation reduces and assembles graphene oxide in one step [2]. Polymerising a monomer inside the wet network is another way to combine the graphene skeleton with a second component [3]. Electronic conduction through the network is what makes the monolith attractive as an electrode without a binder, and combining it with a conducting polymer gives a compressible, high-rate electrode [4]. Controlling the sheet orientation during assembly turns the same material into a lamellar membrane with a different transport anisotropy [5].
References
- Chen, W.; Li, S.; Chen, C.; Yan, L. Self‐Assembly and Embedding of Nanoparticles by In Situ Reduced Graphene for Preparation of a 3D Graphene/Nanoparticle Aerogel. Advanced Materials 2011, 23, 5679-5683. [CrossRef]
- He, Y.; Li, J.; Li, L.; Li, J. Gamma-ray irradiation-induced reduction and self-assembly of graphene oxide into three-dimensional graphene aerogel. Materials Letters 2016, 177, 76-79. [CrossRef]
- Cheng, H.; Xue, H.; Zhao, G.; Hong, C.; Zhang, X. Preparation, characterization, and properties of graphene-based composite aerogels via in situ polymerization and three-dimensional self-assembly from graphene oxide solution. RSC Advances 2016, 6, 78538-78547. [CrossRef]
- Huang, H.; Xia, L.; Zhao, Y.; Zhang, H.; Cong, T.; Wang, J.; Wen, N.; Yang, S.; Fan, Z.; Pan, L. Three-dimensional porous reduced graphene oxide/PEDOT:PSS aerogel: Facile preparation and high performance for supercapacitor electrodes. Electrochimica Acta 2020, 364, 137297. [CrossRef]
- Zhuang, P.; Guo, Z.; Wang, S.; Zhang, Q.; Zhang, M.; Fu, L.; Min, H.; Li, B.; Zhang, K. Interfacial Hydrothermal Assembly of Three-Dimensional Lamellar Reduced Graphene Oxide Aerogel Membranes for Water Self-Purification. ACS Omega 2021, 6, 30656-30665. [CrossRef]
