Two-dimensional, ordered, double transition metals carbides having a nominal unit cell composition M′2M″nXn+1
US10720644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2016 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Aug 15, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure is directed to compositions comprising at least one layer having first and second surfaces, each layer comprising: a substantially two-dimensional array of crystal cells, each crystal cell having an empirical formula of M′2M″nXn+1, such that each X is positioned within an octahedral array of M′ and M″; wherein M′ and M″ each comprise different Group IIIB, IVB, VB, or VIB metals; each X is C, N, or a combination thereof; n=1 or 2; and wherein the M′ atoms are substantially present as two-dimensional outer arrays of atoms within the two-dimensional array of crystal cells; the M″ atoms are substantially present as two-dimensional inner arrays of atoms within the two-dimensional array of crystal cells; and the two dimensional inner arrays of M″ atoms are sandwiched between the two-dimensional outer arrays of M′ atoms within the two-dimensional array of crystal cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.