 Seawater electrolysis has been identified as a promising method for producing hydrogen gas, H2. However, the presence of chloride ions in seawater can cause side reactions and corrosion, resulting in low efficiency and poor stability of the electric catalyst. A new corrosion-resistant IUMO-NI electric catalyst was developed, which uses mollibdate ions to repel chloride ions from the surface of the catalyst. This catalyst was used in an anion exchange membrane electrolyzer to produce H2 with an energy conversion efficiency of 77.9%, a current density of 1,000 mA Cm2, and a cost of Bin Shea 85 per GGE. These results are comparable to or better than the 2026 technical target of 0.0 GGE set by the US Department of Energy, indicating the potential practicality of this technology. This article was authored by Xin Kang, Feng Ning Yang, Ji Yu and Zhong, and others. We are article.tv, links in the description below.