Protocol for fabricating a starfish-inspired magnetoelastic generator array

This protocol outlines the fabrication and application of a starfish-inspired magnetoelastic generator (MEG) array for ocean wave energy harvesting and autonomous hydrogen (H₂) production. We detail the procedures for device design, frame and MEG fabrication, magneto-mechanical coupling (MC) layer characterization, and array assembly. We also describe procedures for evaluating electrical performance, converting AC to DC output, and enabling MEG-driven on-site water-splitting, offering a comprehensive strategy for sustainable ocean wave energy harvesting and direct H₂ fuel generation. For complete details on the use and execution of this protocol, please refer to Ock et al.¹.