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Multiple functional base-induced highly ordered graphene aerogels

Graphene aerogels with aligned and continuous channels are of great significance to the fields of mechanical engineering, energy storage or environmental remediation. However, due to the lack of a microstructure to control pores, graphene aerogels have poor mechanical properties, adsorption properties and low practicality. Here, we have developed an base-induced method that can easily obtain highly ordered graphene aerogel (HOGA) with excellent properties. The HOGA demonstrates a high compressive strength of 32 KPa under the strain of 70%. What’s more, after 10 times of 95% huge compressive strain, the maximum stress and height remain unchanged. Owning to the ultra-high elastic, mechanical properties and stable force-electrical conversion characteristics, HOGA is used to prepare a stress/strain sensor, which can substitute for sensing human movement and distinguish different walking postures. In addition, HOGA possesses an ultra-fast adsorption rate (83 g g-1 s-1) for organic solvents making it the ideal candidate for environmental remediation.