Phys. Rev. Lett. 112, 125501 – Published 26 March 2014 , DOI: http://dx.doi.org/10.1103/PhysRevLett.112.125501
Structure of Nanocrystalline Ti3C2 MXene Using Atomic Pair Distribution Function
Chenyang Shi1, Majid Beidaghi2, Michael Naguib2, Olha Mashtalir2, Yury Gogotsi2,*, and Simon J. L. Billinge1,3
- 1Department of Applied Physics and Applied Mathematics, Columbia University, New York, 10027, USA
- 2Department of Materials Science and Engineering, A.J.Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, USA
- 3Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA
- * Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript
Abstract
The structures of nanocrystalline pristine, potassium hydroxide and sodium acetate intercalated new two-dimensional materials Ti3C2 MXenes were studied using the x-ray atomic pair distribution function technique. Pristine MXene has a hexagonal structure with a=b=3.0505(5) Å, c=19.86(2) Å (S.G. P63/mmc No. 194).
Both hydroxyl and fluoride terminating species are present. The intercalation of K+ or Na+ ions expands the Ti3C2 layers perpendicular to the planes but shrinks the in-plane a and b lattice parameters.
Source: www.journals.aps.org