Experimental study demonstrates suppressed cathode passivation in alkaline water electrolysis using ruthenium on Raney nickel, indicating viable paths toward stable industrial hydrogen production.
Ru nanoparticles reconstruct water networks on RANEY® Ni, decreasing local pH near cathode to inhibit passivation. The cathode achieves 10 A cm −2 at 2.3 V with 2500 hours stability at 1.0 A cm −2 .
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Wu et al. (2025) studied this question.
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