How heavy is graphene Aerogel?
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| Papers (10) | Insight |
|---|---|
180 Citations | 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°). |
48 Citations | The thus fabricated crumpled aerogel exhibits high elasticity and hydrophobicity with superior absorption capacity of organic pollutants, which is 224%–406% higher than that of conventional graphene aerogels assembled by flat and stiff plates, outperforming most of the pioneering reported graphene aerogels synthesized by sol-gel method. |
74 Citations | 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. |
22 Citations | The unique preparation and sensor application may lead to new exploitation for graphene aerogel in future electronic device. |
| The resulting graphene aerogel showed complete water repellency, superoleophilicity, ultra-low density, large specific surface area, high absorption capacity of oils and organic solvents, superior absorption recyclability, and excellent mechanical properties. | |
33 Citations | Graphene aerogel works as flexible and conductive matrix, which can not only significantly increase the mechanical stress, but also further improve the storage properties. |
15 Citations | In contrast to the brittle pristine graphene aerogel, the resulting polymer-coated graphene aerogel demonstrates high elastic properties. |
64 Citations | Graphene aerogel preparation by self-assembly in the liquid phase is a promising strategy due to its tunability and sustainability. |
15 Citations | 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. |
79 Citations | 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. |
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What are Clay aerogels?5 answersClay aerogels are innovative materials with exceptional properties. They are created by incorporating polymeric components into clay-based aerogels, resulting in improved physical and thermal characteristics. These aerogels have applications in various fields, such as thermal insulation in buildings, superelastic 3D structures for solar desalination and adsorption purposes, and as fillers in polymer matrices to enhance mechanical properties and thermal stability. To address challenges like crack formation and high density, strategies like adding cellulose nanofibrils have been explored, leading to crack-free aerogels with reduced density and thermal conductivity. Overall, clay aerogels represent a versatile and promising class of materials with a wide range of potential applications due to their unique properties and the ability to tailor them for specific needs.
How do reaxff reactive MD simulations aid in understanding the mechanical properties of graphene aerogels?5 answersReaxFF reactive MD simulations play a crucial role in understanding the mechanical properties of graphene aerogels by predicting growth reactions, defect dynamics, and fracture behavior. These simulations provide insights into the power law dependence of mechanical properties on density, such as the elastic modulus, tensile strength, and fracture toughness of graphene aerogels. Additionally, molecular dynamics simulations enable the systematic variation of mechanical properties beyond experimental capabilities, aiding in the in-depth understanding of nanomechanics for designing advanced porous materials like graphene aerogels. By utilizing ReaxFF, researchers can accurately predict the behavior of graphene aerogels under different loading conditions, contributing significantly to the advancement of material science and technology.
What are the current trends in the use of aerogels in various industries?4 answersThe current trends in the use of aerogels span across various industries, showcasing their versatility and potential applications. In the construction field, aerogels are gaining prominence for energy-saving purposes, particularly in building insulation. Biomedical applications are another key area, where aerogels are explored for drug delivery, tissue scaffolds, wound healing, and regenerative medicine. Moreover, in bone tissue engineering, nanocellulose-based aerogels are being extensively studied due to their ability to mimic the extracellular matrix and promote tissue healing. Additionally, aerogels are finding applications in flame-retardant and thermal-insulating fields, especially when derived from green materials like nanocellulose, chitosan, and starch. These trends highlight the broad spectrum of industries benefiting from the unique properties of aerogels.
What are the current trends in the use of aerogels in industrial applications?4 answersCurrent trends in the industrial application of aerogels indicate a growing interest in various sectors. Silica aerogels, known for their exceptional properties, are primarily utilized in thermal insulation, with emerging applications in electric vehicles and building insulation. Additionally, aerogels made from biopolymers like nanocellulose are gaining attention in bone tissue engineering, offering mimicry of the extracellular matrix and drug delivery capabilities for tissue healing and growth. Furthermore, the use of aerogels in construction for energy-saving purposes is on the rise, with applications in building insulation through aerogel glass, mortar, felt, and coatings being prominent. The versatility of aerogels, spanning from thermal insulation to biomedical applications, showcases a promising future for their industrial utilization.
What is the best way to make an aerogel blanket?4 answersThe best way to make an aerogel blanket is by impregnating a catalyzed sol into a blanket substrate and allowing it to remain in the impregnation tank for a specific time to control flowability and achieve a viscosity that enables easy injection into the blanket. This method ensures uniform formation of aerogel inside the blanket, improving the uniformity of pore structure and insulation performance. It also reduces the loss of raw material, minimizes processing problems, and decreases dust generation. Another approach involves using a bobbin on which the blanket is wound, a gelation tank, a drive member to rotate the bobbin, and a silica sol supply member to inject silica sol into the gelation tank and impregnate it into the blanket. This method simplifies manufacturing equipment, improves efficiency, and enhances thermal conductivity by uniformly forming aerogel in the blanket substrate.
Who makes graphene Aerogel?10 answers