Concept de nanoparticule

Nanographene finally synthesized after 70 years of research

Researchers, in collaboration with Osaka City University, succeeded in synthesizing and then crystallizing a revolutionary molecule. It’s about nanographenea type of magnet capable of shaking up the world of electronics, sports and influencing many other disciplines.

Those japanese scientists accomplished a real feat. This new carbon based material was too unstable to be handled in the laboratory. From 2004, they started using graphene and similar materials to master its synthesis.

After many trials, they were finally able to manufacture nanographene magnets. This discovery is the culmination of more than 70 years of research. The results of this study should advance areas that have long remained elusive.

Synthesis of nanographene impossible for a long time

The Osaka University researchers recently published the results of their studies in the Journal of the American Chemical Society. And yet, this crystalline nanographene to magnetic properties has already been theoretically predicted since the 1950s.

Even though the existence of this material has been announced. Recent research has shown the presence of this nanographene at extremely low temperatures, but no one has yet managed to confirm its existence in from normal laboratory conditions. He introduced himself as a two-dimensional monolayer of carbon rings arranged in a honeycomb.

The graphene nanostructures fascinate researchers because of their impressive properties. They have edges that present magnetic and electronic properties that scientists would like to exploit. In addition, this material has a much higher strength than a steel metal of the same thickness and offers a efficient load transport over long distances.

Triangulene to stabilize graphene nanosheets

Scientists have never succeeded in stabilizing graphene monolayers. These tiny leaflets are extremely difficult to prepare, which complicates their study. So they decided to stabilize in the laboratory. To address this challenge, the researchers used a simpler, but much more advanced model: the triangulene.

Nevertheless, triangulene crystallization has long eluded researchers due to its uncontrolled polymerization. By blocking this polymerization with a steric protectionthey were able to suppress any spurious chemical reactions while retaining the underlying properties of triangulene.

The use of this stable triangulene derivative paves the way for many other applications. The chemical synthesis of advanced forms of nanographene can for example help to create new families of electronic components or some superconducting magnets.

SOURCE: SCITECHDAILY

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