Structure of nanocrystalline Ti3C2 MXene using atomic pair distribution function.
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.
Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA.
Chenyang
C
Shi
Department of Materials Science and Engineering, A.J.Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, USA.
Majid
M
Beidaghi
Department of Materials Science and Engineering, A.J.Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, USA.
Michael
M
Naguib
Department of Materials Science and Engineering, A.J.Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, USA.
Olha
O
Mashtalir
Department of Materials Science and Engineering, A.J.Drexel Nanomaterials Institute, Drexel University, Philadelphia, Pennsylvania 19104, USA.
Yury
Y
Gogotsi
Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, USA and Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA.
Simon J L
SJ
Billinge