Extending MoS₂-based materials into the catalysis of non-acidic hydrogen evolution: challenges, progress, and perspectives

Abstract Water splitting is regarded as among the most prospective methods of generating green hydrogen. Switching electrolytes water electrolysis from acidic to non-acidic ones will enable use noble-metal-free electrocatalysts and mitigate material corrosion, thus lowering capital cost electrolyzers improving their operational stability. However, increasing electrolyte pH degrade hydrogen evolution reaction (HER) activity because reduced concentration H 3 O + reactants, making HER sluggish. To accelerate HER, MoS 2 -based materials with advantages unique atomistic structure, low cost, high abundance have been considered substitute for Pt in acid. Great efforts are being spent on extending into catalysis further development requires clarification existing challenges current progress. it has not yet discussed electrocatalysts. disparity, we systematically overview covering catalytic mechanisms, modulation strategies, development, challenges, research progress, perspectives. This review contribute rational design high-performance conditions.