Transition Metal Dichalcogenides (TMDs) and their heterostructures have gained significant attention as promising materials for electrocatalytic applications, including nitrate reduction reactions (NO3RR) and hydrogen evolution reactions (HER). These two-dimensional materials exhibit remarkable catalytic activity due to their unique electronic and structural properties. Researchers have been exploring the tunability of TMD-based electrocatalysts to enhance their performance in various electrochemical reactions.