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Scientists develop highly effective household of 2D supplies

Credit: CC0 Public Domain

A workforce from the Tulane University School of Science and Engineering has developed a brand new household of two-dimensional supplies that researchers say has promising functions, together with in superior electronics and high-capacity batteries.

Led by Michael Naguib, an assistant professor within the Department of Physics and Engineering Physics, the research has been revealed within the journal Advanced Materials.

“Two-dimensional materials are nanomaterials with thickness in the nanometer size (nanometer is one millionth of a millimeter) and lateral dimensions thousands of times the thickness,” Naguib mentioned. “Their flatness offers unique set of properties compared to bulk materials.”

The title of the brand new household of 2D supplies is transition metal carbo-chalcogenides, or TMCC. It combines the traits of two households of 2D supplies—transition metallic carbides and transition metal dichalcogenides.

Naguib, the Ken & Ruth Arnold Early Career Professor in Science and Engineering, mentioned the latter is a big family of supplies that has been explored extensively and located to be very promising, particularly for electrochemical power storage and conversion. But he mentioned one of many challenges in using them is their low electrical conductivity and stability.

On the opposite hand, he mentioned, transition metallic carbides are glorious electrical conductors with far more highly effective conductivity. Merging the 2 households into one is anticipated to have nice potential for a lot of functions akin to batteries and supercapacitors, catalysis, sensors and electronics.

“Instead of stacking the two different materials like Lego building blocks with many problematic interfaces, here we develop a new 2D material that has the combination of both compositions without any interface,” he mentioned.

“We used an electrochemical-assisted exfoliation process by inserting lithium ions in-between the layers of bulk transition metals carbo-chalcogenides followed by agitation in water,” mentioned Ahmad Majed, the primary creator of the article and a doctoral candidate in Materials Physics and Engineering at Tulane working in Naguib’s group.

Unlike different unique nanomaterials, Majed mentioned, the method of creating these 2D TMCC nanomaterials is easy and scalable.

In addition to Naguib and Majed, the workforce contains Jiang Wei, an affiliate professor in physics and engineering physics; Jianwei Sun, an assistant professor in physics and engineering physics; Ph.D. candidates Kaitlyn Prenger, Manish Kothakonda and Fei Wang at Tulane; and Dr. Eric N. Tseng and professor Per O.A. Persson of Linkӧping University in Sweden.

Scientist leads study on faster charging energy storage

More info:
Ahmad Majed et al, Transition Metal Carbo‐Chalcogenide “TMCC” a New Family of Two‐dimensional Materials, Advanced Materials (2022). DOI: 10.1002/adma.202200574

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