Table 1 Adsorption energies Ead (in eV) and bond lengths d (in Å) of the Mnn (n = 1–4) clusters adsorbed on the monolayer and bilayer MoS2.
Layer Number | System Name | Optimized bond distance (Å) | Ead (eV) | ||
|---|---|---|---|---|---|
d Mn-Mn | nearest dMn-S | farthest dMo-S | |||
0 | Mn2 cluster | 2.633 | — | — | — |
Mn3 cluster | 2.791 | — | — | — | |
Mn4 cluster | 2.764 | — | — | — | |
1 | pristine | — | — | 2.437 | — |
Mn1@MoS2 | — | 2.207 | 2.610 | −1.631 | |
Mn2@MoS2 | 2.877 | 2.116 | 2.654 | −2.897 | |
Mn3@MoS2 | 2.720 | 2.181 | 2.556 | −4.207 | |
Mn4@MoS2 | 2.631 | 2.206 | 2.531 | −4.725 | |
2 | pristine | — | — | 2.432 | — |
Mn@MoS2 | — | 2.327 | 2.472 | −2.791 | |
Mn2@MoS2 | 2.917 | 2.086 | 2.578 | −5.013 | |
Mn3@MoS2 | 2.956 | 2.238 | 2.457 | −6.527 | |
Mn4@MoS2 | 2.940 | 2.087 | 2.469 | −8.787 | |