Forskare i Hongkong utvecklar ultrahållfast rostfritt stål för grön vätgas

10 maj 2026

Rapporterad av AI

Ett team vid University of Hong Kong har skapat en ny legering av rostfritt stål som står emot korrosion vid havsvattenelektrolys. Materialet skulle kunna ersätta dyra titankomponenter i system för vätgasproduktion.

Legeringen, känd som SS-H2, har utvecklats under ledning av professor Mingxin Huang vid institutionen för maskinteknik. Den använder en sekventiell dubbelpassiveringsstrategi, där ett kromoxidskikt bildas följt av en manganbaserad skyddssköld som tål potentialer på upp till 1700 mV. Denna metod övervinner begränsningarna hos konventionellt rostfritt stål, som brister vid omkring 1000 mV under vattenoxidation i kloridrika miljöer.

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Forskare i Hongkong utvecklar ultrahållfast rostfritt stål för grön vätgas

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