Fig. 5: Scalable synthesis of the Ta-TaS2 MC for PEM water electrolysis.
From: A Ta-TaS2 monolith catalyst with robust and metallic interface for superior hydrogen evolution

a A photograph of Ta-TaS2, about 175 × 20 mm, and corresponding self-supporting electrode. b V-I curves of overall water electrolysis with the Ta-TaS2 MC as the cathode and IrO2 as the anode and the current density reaches 1000 mA cm−2. The porous Pt foil ‖ IrO2 were also shown for comparison. c Experimental and theoretical amounts of H2 generated by the Ta-TaS2 electrode at a fixed current density of 100 mA cm−2 and corresponding Faraday efficiency. d Long-term tests of water electrolysis with Ta-TaS2 or porous Pt foil as the cathodes, and commercial IrO2 as the anode.