How to mold graphene?
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| Papers (10) | Insight |
|---|---|
64 Citations | This work opens up a whole new vista on how to disperse graphene. |
10 Citations | This work has shown a facile method to alter graphene morphology and to develop promising graphene structures for future optoelectronics. |
44 Citations | This study provides an easy way to fabricate a graphene + CuO composite, and the method may be extended to other graphene based structures. |
52 Citations | The simulations provide a fundamental understanding of the graphene carbon bombardment and the parameters to develop graphene devices by controlling defect formation. |
| Our results suggest that incorporating mesoscale pyramids in graphene devices is a viable route to achieving strain-engineering of graphene. | |
249 Citations | The strategy of graphene encapsulation can be extended to develop new graphene-based materials with superior physical an... |
18 Citations | The mechanical exfoliation is an attractive method to fabricate graphene devices using mono and multilayer graphene flakes. |
57 Citations | Our work demonstrates a new approach to the growth of epitaxial graphene and a means of generating and modifying strain in graphene. |
| On the basis of our analysis, we propose the use of graphene seeds to synthesize high-quality graphene in large area. | |
| Developing 3D graphene architectures that are constructed of graphene sheet subunits is an effective strategy to solve this problem. |
Related Questions
How to produce graphene frrom waste?5 answersGraphene can be produced from waste materials through various methods. One approach involves using unsupported Fe, Co, and Fe-Co oxide catalysts to convert polypropylene (PP) waste into graphene sheets. Another method is the upcycling of depolluted, dismantled, and shredded end-of-life waste plastic into flash graphene using flash Joule heating. Agricultural biomass waste materials, such as coconut shell, castor oil, sesame oil, and Colocasia esculenta leaves, can also be utilized to synthesize graphene. The production of graphene from agricultural biomass waste involves thermal processes like pyrolysis. These methods offer a sustainable and environmentally friendly approach to obtain graphene from waste materials, contributing to the circular economy and reducing the environmental impact of waste disposal.
How to produce graphene?5 answersGraphene can be produced using various methods. One method involves forming a graphite/water mixture and introducing it into a cavitation reactor using offset nozzles. Another method involves producing graphene from carbon monoxide, resulting in monolayer single-crystal graphene with low defects. A different approach is to prepare a mixed solution from graphene oxide, a dispersant, a reducer, and a structure reinforcer, and then dropwise adding it into a coagulating solution to obtain graphene aquagel, which is then subjected to freezing and heat treatment. Additionally, a method involves providing a substrate with Si-OH and/or Si-H moieties, contacting it with a carbon-containing reagent to form a carbon-containing coating, depositing metals onto the coated surface, and heating the substrate to decompose the coating and form a metal-coated graphene layer. These methods offer reproducible and scalable ways to produce graphene with varying properties.
What are the different methods for synthesizing graphene?5 answersGraphene can be synthesized using various methods. The top-down methods include mechanical exfoliation, chemical exfoliation, and chemical synthesis reduction. Mechanical exfoliation involves separating graphene layers from bulk graphite and is suitable for small-scale production. Chemical exfoliation uses chemical processes to obtain graphene oxide from graphene flakes. Chemical synthesis reduction involves reducing graphene oxide to obtain graphene. Bottom-up methods include chemical vapor deposition (CVD), pyrolysis, and epitaxial growth synthesis. CVD synthesis promotes graphene growth by reacting a gaseous hydrocarbon with a solid substrate. Pyrolysis and epitaxial growth synthesis are also used for bottom-up graphene synthesis. Other methods mentioned in the abstracts include hydrothermal methods, electrochemical deposition methods, covalent interaction, and non-covalent interaction.
What are the processing of synthesising graphene?5 answersGraphene can be synthesized using various methods. One method is mechanical exfoliation, which involves separating graphene layers from bulk graphite. Another method is chemical vapor deposition (CVD) synthesis, where a gaseous hydrocarbon reacts with a solid substrate to promote graphene growth. The modified Hummer's method involves using oxidizing and reducing agents to obtain graphene oxide (GO) from graphene flakes, which is then synthesized into graphene. Physical methods can also be used, such as high temperature shaping, delaminating graphite, stripping and dispersing delaminated graphite, preparing slurry, removing functional groups, and vacuum-drying the product. Another process involves using natural or artificial graphite as raw materials, oxidizing it to obtain graphite oxide, intercalating it, and then conducting suction-filtration and microwave irradiation to obtain graphene. These methods offer different approaches to synthesizing graphene for various applications.
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