-Russian scientists have developed graphene nanoparticles that can be used to manufacture electrodes for supercapacitors and batteries

Russian scientists have developed graphene nanoparticles that can be used to manufacture electrodes for supercapacitors and batteries
author:enerbyte source:本站 click259 Release date: 2023-09-20 10:17:23
abstract:
Chemists from Moscow's Romonosov State University have recently synthesized a special type of graphene nanoparticles resembling jellyfish in appearance and modified them. The structure of these particles allows them to be used for catalytic processes and the manufacture of conductive polym...

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Chemists from Moscow's Romonosov State University have recently synthesized a special type of graphene nanoparticles resembling jellyfish in appearance and modified them. The structure of these particles allows them to be used for catalytic processes and the manufacture of conductive polymers. The relevant research results have been published in the journal Applied Surface Science.

Graphene is one of the allotropes of carbon, which is one of the existing forms of pure carbon and differs in structure and properties from other forms. Graphene is a hexagonal two-dimensional crystal, and its strength, thermal conductivity, conductivity, and other properties determine its important use in the research of many chemists and nanoelectronic physicists.

The essence of this study is to synthesize unique graphene nanoparticles and modify them. The structure developed by the research team has a very interesting shape: the graphene layer bends at the edges, with a functional tail at the edges. Due to its resemblance to jellyfish in appearance, the research team referred to it as jellyfish like graphene nanosheets.

The above nanoparticles are composed of several thin (less than 50 nanometers) graphene layers, with edges bent due to the characteristics of the preparation method (using catalysts to accelerate the thermal decomposition of hydrocarbons). After chemical treatment with nitric acid, the edges of the thin film are covered by functional oxygen-containing groups. At high temperatures, oxygen-containing groups can be converted into nitrogen tails through the use of ammonia. The research team used a complete set of chemical and physical methods such as spectroscopy and microscopy, making it possible to study fine structures.

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