In order to evaluate the quality and applicability of our exfoliated materials, we decided to study their electrocatalytic performance. MnPS 3 has been previously used as a catalyst for water splitting, 28 and its efficiency towards hydrogen evolution reaction (HER) has been demonstrated to increase when exfoliated. However, in this report, the exfoliation procedure was not assisted through chemical intercalation and, as a result, the flakes were of lower morphological quality than those reported in the present work.