  Molybdenum disulfide (MoS$_2$) nanosheet is a two-dimensional material with
high electron mobility and with high potential for applications in catalysis
and electronics. We synthesized MoS$_2$ nanosheets using a one-pot wet-chemical
synthesis route with and without Re-doping. Atom probe tomography revealed that
3.8 at.% Re is homogeneously distributed within the Re-doped sheets. Other
impurities are found also integrated within the material: light elements
including C, N, O, and Na, locally enriched up to 0.1 at.%, as well as heavy
elements such as V and W. Analysis of the non-doped sample reveals that the W
and V likely originate from the Mo precursor.
