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The functionalized graphene aerogel represents superior physical features, including low density (bulk density of 14.4 mg cm −3 ), high porosity (>87%), mechanical stability (supports at least 2600 times its own weight), and hydrophobicity (contact angle of 144°).
Graphene aerogel is a relatively new type of aerogel that is ideal for energy storage applications because of its large surface area, high electrical conductivity and good chemical stability.
This opens up scalable and low-cost ways to the integration of microscopic two-dimensional graphene sheets into macroscopic 3D graphene aerogel materials, thus providing the possibility of fabricating novel lightweight porous aerogel materials with controllable functionalities and reversible compressibility for applications in numerous fields.
In contrast to the brittle pristine graphene aerogel, the resulting polymer-coated graphene aerogel demonstrates high elastic properties.
The results reveal that nitrogen-doped graphene aerogel prepared using aniline as nitrogen source possesses a large specific surface area, high nitrogen content, good mechanical strength and excellent electrical conductivity.
Herein, we report a simple method toward fabricating graphene aerogel (GA) from graphene oxides only by photoreduction, which is for the first time used to harvest solar energy.
The unique preparation and sensor application may lead to new exploitation for graphene aerogel in future electronic device.
It is hoped that our current work could open promising prospects for the rational utilization of highly conductive commercial graphene to fabricate graphene-based aerogel for enhanced photoredox applications.
Therefore, a Co-N decorated graphene aerogel framework with a large surface area (485 m(2) g(-1)) and an abundance of meso/macropores is effectively formed after heat treatment.
In addition, this type of strong integrated graphene-based aerogel could be used in practical applications, such as hydrophilic and oleophilic intelligence and compressible electrical sensor.

Related Questions

How to turn corn stover into aerogel?5 answersTo turn corn stover into aerogel, several methods can be employed. One approach involves air-drying, peeling, and extracting cellulose from corn stalks. Another method includes dissolving corncob powder in a solution mixed with specific chemicals, followed by refrigeration and drying to obtain corncob aerogel. Additionally, blending microcrystalline cellulose with high amylose corn starch in a NaOH-urea solution and freeze-drying can yield aerogels with interconnected porous structures. Furthermore, utilizing corncob cellulose dissolved in 1-allyl-3-methylimidazolium chloride and regenerating in different coagulation baths can produce aerogels with porous network structures and transparent films. These diverse techniques showcase the potential for converting corn stover into aerogel through innovative and environmentally friendly processes.
How to improve retention of graphene aerogel?4 answersTo improve the retention of graphene aerogel, several methods have been proposed in the literature. One approach is to attach chemically modified graphene sheets to the pore surface of the aerogel, which enhances its hydrophobicity without compromising its overall porosity and elasticity. Another method involves the introduction of nitrogen-doped graphene aerogel, which increases the active sites and enhances the interaction between the aerogel and various adsorbates, resulting in higher adsorption capacities. Additionally, the use of a borate crosslinking effect during the preparation process has been shown to enhance the rigidity of the aerogel and reduce the capillary force in the drying process, resulting in improved shape retention. These methods offer potential solutions for enhancing the retention properties of graphene aerogels and can contribute to their practical applications in areas such as oil absorption and wastewater treatment.
How much does graphene Aerogel weigh?10 answers
How to mold graphene?10 answers
Who is making graphene?9 answers
Who makes graphene Aerogel?10 answers

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