Fig. 3: HER was performed in alkaline and acidic electrolytes.

a LSV curves in 1 M KOH. b η₁₀ and Tafel slopes for various Mo-based HER electrocatalysts in 1.0 M KOH. c LSV curves in 0.5 M H₂SO₄. d η₁₀ and Tafel slopes for various Mo-based HER catalysts in 0.5 M H₂SO₄. (All LSV curves were corrected without iR-compensation).