liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Two-Dimensional Transition Metal Carbides
University of Penn.
University of Penn.
University of Penn.
University of Penn.
Show others and affiliations
2012 (English)In: ACS Nano, ISSN 1936-0851, Vol. 6, no 2, 1322-1331 p.Article in journal (Refereed) Published
Abstract [en]

Herein we report on the synthesis of two-dimensional transition metal carbides and carbonitrides by immersing select MAX phase powders in hydrofluoric acid, HF. The MAX phases represent a large (andgt;60 members) family of ternary, layered, machinable transition metal carbides, nitrides, and carbonitrides. Herein we present evidence for the exfoliation of the following MAX phases: Ti2AlC, Ta4AlC3, (Ti-0.5,Nb-0.5)(2)AlC, (V-0.5,Cr-0.5)(3)AlC2, and Ti3AlCN by the simple immersion of their powders, at room temperature, in HF of varying concentrations for times varying between 10 and 72 h followed by sonication. The removal of the "A" group layer from the MAX phases results in 2-D layers that we are labeling MXenes to denote the loss of the A element and emphasize their structural similarities with graphene. The sheet resistances of the MXenes were found to be comparable to multilayer graphene. Contact angle measurements with water on pressed MXene surfaces showed hydrophilic behavior.

Place, publisher, year, edition, pages
American Chemical Society , 2012. Vol. 6, no 2, 1322-1331 p.
Keyword [en]
MXene, two-dimensional materials, carbides, carbonitrides, exfoliation
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-76024DOI: 10.1021/nn204153hISI: 000300757900040OAI: diva2:512819
Funding Agencies|Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Vehicle Technologies of the U.S. Department of Energy|DE-AC02-05CH11231|Batteries for Advanced Transportation Technologies (BATT)|6951370|Commonwealth of Pennsylvania||Alexander von Humboldt Foundation||Available from: 2012-03-29 Created: 2012-03-23 Last updated: 2012-03-29

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Lu, JunHultman, Lars
By organisation
Thin Film PhysicsThe Institute of Technology
In the same journal
ACS Nano
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 66 hits
ReferencesLink to record
Permanent link

Direct link