CALIFORNIA: After eluding scientists for more than 50 years, a team of researchers has now found a way to not only synthesize carbyne, but to mass produce it.
This one-dimensional form of carbon is thought to be stronger than any other known to scientists, surpassing the stiffness of diamond by more than 40-fold.
In the new method, the researchers have used a double-walled carbon nanotube to grow stable carbon chains of record-breaking lengths.
To achieve the new length, the researchers created double-walled nanotubes by rolling two layers of graphene. The ultra-long carbon chains were then grown inside of these tubes, which create a stable environment. Pictured above is the inside of a graphene molecular structure
To achieve the new length, the researchers created double-walled nanotubes by rolling two layers of graphene. The ultra-long carbon chains were then grown inside of these tubes, which create a stable environment. Pictured above is the inside of a graphene molecular structure
Carbyne is linear acetylenic carbon, or an infinitely long carbon chain.
Its existence was first proposed in 1885 by Adolf von Baeyer, who warned it would remain elusive due to extreme instability.
Carbyne is a one-dimensional form of carbon and is thought to be 40 times stiffer than diamond and twice as stiff as graphene, outperforming all other carbon materials in strength.
Carbyne was first proposed in 1885 by Adolf von Baeyer, who described the existence of linear acetylenic carbon – or an infinitely long carbon chain – known as carbyne.
But, the researcher warned it would remain elusive due to its extreme instability.
Led by Thomas Pichler, researchers from the University of Vienna have now developed a way to bulk produce carbon chains made up of more than 6,400 carbon atoms.
Previously, the record length for a carbon change was roughly 100 carbon atoms.
To achieve the new length, the researchers created double-walled nanotubes by rolling two layers of graphene.
The ultra-long carbon chains were then grown inside of these tubes, which create a stable environment.
This method allowed the team to form carbon chains more than 50 times longer than the previous record holder.
