Intercalation and delamination of layered carbides and carbonitrides.

Citation data:

Nature communications, ISSN: 2041-1723, Vol: 4, Issue: 1, Page: 1716

Publication Year:
2013
Usage 14
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Citations 475
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Repository URL:
http://scholarsmine.mst.edu/chem_facwork/2088; https://works.bepress.com/vadym-mochalin/27
PMID:
23591883
DOI:
10.1038/ncomms2664
Author(s):
Mashtalir, Olha; Naguib, Michael; Mochalin, Vadym; Dall'Agnese, Yohan; Heon, Min; Barsoum, Michel W.; Gogotsi, Yury G.
Publisher(s):
Springer Nature; Nature Publishing Group; Nature Research
Tags:
Chemistry; Biochemistry, Genetics and Molecular Biology; Physics and Astronomy
article description
Intercalation and delamination of two-dimensional solids in many cases is a requisite step for exploiting their unique properties. Herein we report on the intercalation of two-dimensional Ti3C2, Ti3CN and TiNbC-so called MXenes. Intercalation of hydrazine, and its co-intercalation with N,N-dimethylformamide, resulted in increases of the c-lattice parameters of surface functionalized f-Ti3C2, from 19.5 to 25.48 and 26.8 Å, respectively. Urea is also intercalated into f-Ti3C2. Molecular dynamics simulations suggest that a hydrazine monolayer intercalates between f-Ti3C2 layers. Hydrazine is also intercalated into f-Ti3CN and f-TiNbC. When dimethyl sulphoxide is intercalated into f-Ti3C2, followed by sonication in water, the f-Ti3C2 is delaminated forming a stable colloidal solution that is in turn filtered to produce MXene 'paper'. The latter shows excellent Li-ion capacity at extremely high charging rates.