Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 19, Issue 43, Pages 29106-29113Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7cp06171d
Keywords
-
Funding
- National Natural Science Foundation of China [21403182, 11647070]
- Research Grants Council of Hong Kong [CityU 21300014]
- CityU [7004387, 9680136]
- NSFC/RGC Joint Research Scheme [N_CityU123/15, 5151101197]
- Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund [U1501501]
Ask authors/readers for more resources
MXenes are attracting much attention as electrode materials due to their excellent energy storage properties and good electrical conductivity. Here a carbonized derivative of Ti3C2 (one representative MXene material), a Ti3C4 monolayer, is designed. Density functional theory (DFT) calculations were performed to investigate the geometric and electronic properties, dynamic stability, and Li/Na storage capability of Ti3C4. The Ti3C4 monolayer is proved to be a structurally stable material showing the nature of the metal with C-2 dimers rather than the individual C atom. Moreover, the Ti3C4 monolayer exhibits a low diffusion barrier and high storage capacity (up to Ti3C4Na4 stoichiometry) in Na ion batteries (NIBs) compared with Li ion batteries (LIBs). Its superior properties, such as good electronic conductivity, fast Na diffusion, low open circuit voltage (OCV), and high theoretical Na storage capacity, make the Ti3C4 monolayer a promising anode material for NIBs. More importantly, similar to MXene Ti3C2, new M3C4 monolayers with C-2 dimers can be formed by replacing M with other transition metal elements, and the properties of these monolayers are worthy of further study.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available