Authors
Heonjoo Ha, Kadhiravan Shanmuganathan, Christopher J Ellison
Publication date
2015/3/25
Journal
ACS applied materials & interfaces
Volume
7
Issue
11
Pages
6220-6229
Publisher
American Chemical Society
Description
Graphene oxide (GO) aerogels, high porosity (>99%) low density (∼3–10 mg cm–3) porous materials with GO pore walls, are particularly attractive due to their lightweight, high surface area, and potential use in environmental remediation, superhydrophobic and superoleophilic materials, energy storage, etc. However, pure GO aerogels are generally weak and delicate which complicates their handling and potentially limits their commercial implementation. The focus of this work was to synthesize highly elastic, mechanically stable aerogels that are robust and easy to handle without substantially sacrificing their high porosity or low density. To overcome this challenge, a small amount of readily available and thermally cross-linkable poly(acrylic acid) (PAA) was intermixed with GO to enhance the mechanical integrity of the aerogel without disrupting other desirable characteristic properties. This method is a simple …
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