# Hong Kong researchers report steel alloy for high-potential hydrogen electrolysis

_Published Thursday, September 3, 2026 at 8:07 PM EDT · Science, Infrastructure · Latest · Tier 2 — Notable_

![Samples of the stainless steel for hydrogen – aka SS-H₂ — Primary](https://assets.newatlas.com/dims4/default/6ba7769/2147483647/strip/true/crop/1620x851+0+115/resize/1200x630!/quality/90/?url=https%3A%2F%2Fnewatlas-brightspot.s3.ap-southeast-2.amazonaws.com%2F4d%2F50%2Fa00f64354d14b10b4c223ad6d3ff%2Fultra-stainless-steel.jpeg&na.image_optimisation=0)

University of Hong Kong researchers reported an experimental stainless-steel alloy designed to withstand the corrosive, high-voltage conditions of water electrolysis. In tests using a 3.5% sodium-chloride solution, the alloy remained protected to about 1,700 mV and performed comparably with titanium structural materials in a salt-water electrolyzer, according to the report. The researchers attribute the result to a manganese-based protective layer that supplements chromium-based passivation at higher potentials.

## Sources

- [New Atlas: Technology-Innovation-Outdoor News](https://newatlas.com/energy/stainless-steel-hydrogen-electrolysis/)

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Canonical: https://techandbusiness.org/newswire/SooJbLUIKRiF6TX-mY5NfY
Published: 2026-09-04T00:07:16.855Z
Story chronology: 2026-09-03T15:37:56.000Z
Retrieved: 2026-10-19T06:54:39.168Z
Publisher: Tech & Business (techandbusiness.org)