Extracting energy from ocean waves for electrolysis, while highly desirable, poses significant challenges, especially in achieving high current generation for sustainable water splitting. This work introduces an innovative high-current ocean wave energy harvesting system, employing a self-floating magnetoelastic generator (MEG) ball network designed for autonomous seawater electrolysis and on-site hydrogen (H₂) production. Leveraging the magnetoelastic effect, the MEG ball network is naturally waterproof and can generate a high current density of 0.24 mA cm^–2, paired with a low internal resistance of 9 Ω at a wave frequency of 2 Hz. Its spherical design ensures exceptional mechanical durability, maintaining consistent electrical output even under extremely humid and harsh conditions. In practical applications, this MEG ball network system can continuously produce H₂ at a rate of 0.76 × 10^–3 mL min^–1. These results underscore its potential as a viable technology for on-site seawater electrolysis and large-scale H₂ production.

中文翻译：

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通过磁弹性发电机收集海浪能用于自供电制氢

从海浪中提取能量进行电解虽然非常理想，但也带来了重大挑战，特别是在实现可持续水分解的高电流发电方面。这项工作介绍了一种创新的高电流海浪能量收集系统，采用专为自主海水电解和现场氢气（H ₂）生产而设计的自浮式磁致弹性发电机（MEG）球网络。利用磁弹性效应，MEG球网络具有天然的防水性，可以产生0.24 mA cm ^–2的高电流密度，在2 Hz的波频率下具有9 Ω的低内阻。其球形设计确保了卓越的机械耐用性，即使在极其潮湿和恶劣的条件下也能保持一致的电力输出。在实际应用中，该MEG球网络系统可以以0.76 × 10 ^–3 mL min ^–1的速率连续产生H ₂。这些结果强调了其作为现场海水电解和大规模 H ₂生产的可行技术的潜力。