Exfoliation, delamination, and oxidation stability of molten salt etched Nb2CTz MXene nanosheets.

Autor: Arole, Kailash, Blivin, Jackson W., Bruce, Atiana M., Athavale, Swarnima, Echols, Ian J., Cao, Huaixuan, Tan, Zeyi, Radovic, Miladin, Lutkenhaus, Jodie L., Green, Micah J.
Předmět:
Zdroj: Chemical Communications; 9/18/2022, Vol. 58 Issue 73, p10202-10205, 4p
Abstrakt: Despite numerous prior reports of molten salt etching of MAX phases, few of these reports achieved water-dispersible MXene nanosheets, and none for Nb-based MXenes. Here we demonstrate the synthesis and aqueous dispersibility of Nb2CTZ nanosheets via molten salt etching and utilizing a KOH wash to add hydroxyl surface groups. However, little is known about the oxidation of molten salt etched MXenes compared to acid-etched MXenes. Our results indicate slower oxidation behavior for MXenes etched by molten salts, which may be due to the decreased amount of oxygen-containing terminal groups. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index