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  • 25th anniversary article: MXenes: a new family of two-dimensional materials.

25th anniversary article: MXenes: a new family of two-dimensional materials.

Advanced materials (Deerfield Beach, Fla.) (2013-12-21)
Michael Naguib, Vadym N Mochalin, Michel W Barsoum, Yury Gogotsi
ABSTRACT

Recently a new, large family of two-dimensional (2D) early transition metal carbides and carbonitrides, called MXenes, was discovered. MXenes are produced by selective etching of the A element from the MAX phases, which are metallically conductive, layered solids connected by strong metallic, ionic, and covalent bonds, such as Ti2 AlC, Ti3 AlC2 , and Ta4 AlC3 . MXenes -combine the metallic conductivity of transition metal carbides with the hydrophilic nature of their hydroxyl or oxygen terminated surfaces. In essence, they behave as "conductive clays". This article reviews progress-both -experimental and theoretical-on their synthesis, structure, properties, intercalation, delamination, and potential applications. MXenes are expected to be good candidates for a host of applications. They have already shown promising performance in electrochemical energy storage systems. A detailed outlook for future research on MXenes is also presented.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Titanium aluminium carbide 312, ≥90%, ≤200 μm particle size
Sigma-Aldrich
Titanium aluminium carbide 312, MAX Phase, ≥90%, ≤40 μm particle size
Sigma-Aldrich
Titanium aluminium carbide 211, MAX Phase, ≥80%, ≤200 μm particle size
Sigma-Aldrich
Titanium aluminium carbide 211, MAX Phase, ≥80%, ≤100 μm particle size
Sigma-Aldrich
Titanium aluminium carbide 312, MAX Phase, ≥90%, ≤100 μm particle size