Fig. 4: Application demonstration of maritime Internet of Things.
From: Solid-liquid interface charge transfer for generation of H2O2 and energy
a Utilizing wave energy, the power generation units can serve various purposes such as coastal warning lights, wireless water level detection, and ship anti-corrosion. b Comparison of methyl orange aqueous solution content before and after friction cycle. c The left and right ends of a power generation unit can each drive a warning sign for illumination. The distance between the warning signs is about 3 meters. d Warning signs that alternate glow during the night. e Block diagram of wireless alarm signal transmission and reception. f The signal receiving system triggers a powerful light and sound alarm upon receiving the signal (~15 m). g Schematic diagram of cathodic protection of mild steel in 3.5 wt% NaCl aqueous solution. h Surface morphology images of low carbon steel with and without electrochemical cathodic protection after 4 h, 8 h, and 12 h respectively. Source data are provided as a Source Data file.
