Seawater

Artificial gills unlock long-range underwater robots | What's good for fish may be good for robots, too, as researchers from the Helmholtz-Zentrum Hereon have developed an artificial gill that can extract oxygen from seawater to run fuel cells to power robotic sea gliders on long missions.

Why Dumping Seawater on Blazes Isn’t the Answer to California’s Wildfire Problem

Mechanically strong yet metabolizable plastic breaks down in seawater

Breakthrough sun-powered tech pulls lithium from seawater, redefining energy | A membrane-free electrochemical cell separates lithium ions between brine and fresh water using iron-phosphate electrodes.

Tidal Metals sees seawater as the solution to a critical mineral shortage

Solar device makes 20L drinking water a day from seawater with 93% efficiency | The new device converts 93% of sunlight into usable energy, producing 20 liters of fresh water per square meter daily, significantly improving upon traditional desalination methods.

Seawater, caffeine, cans: MIT has the recipe for on-demand hydrogen.

MIT researchers make hydrogen fuel from soda cans, seawater, caffeine | The aluminum is pretreated with a rare metal alloy that can react with seawater to generate hydrogen.

MIT scientists have discovered a new way to produce hydrogen fuel, using just soda cans, seawater and coffee grounds | The team says the chemical reaction could be put to work powering engines or fuel cells in marine vehicles that suck in seawater.

Seawater is rushing under Thwaites Glacier, potentially dire impact on sea level

In Seawater, Researchers See an Untapped Bounty of Critical Metals

Storm-resistant tech that generates electricity using seawater tested | The floating energy generator is an ideal energy solution for tropical islands that have conventionally relied on fossil fuels for their energy needs.

Extracting uranium from seawater as another source of nuclear fuel

Chinese researchers turn to seawater for nuclear fuel uranium | Uranium ions float freely in the world's oceans at concentrations 1,000 times greater than ore deposits on land and serve as fuel for reactors.

New stainless steel boosts green hydrogen production from seawater / The material will reduce structural material costs by approximately 40 times

A floating, solar-powered device that can turn contaminated water or seawater into clean hydrogen fuel and purified water, anywhere in the world, has been developed by researchers.

Sustainable, Eco-Friendly Plastic That Decomposes in Seawater

New Plastic Biodegrades in Seawater, Self-Heals Under Heat | This stronger, stretchier, self-healing plastic can be processed into complex shapes and biodegrades in seawater.