This strange white paste might not look like much, but it might help solve the sand shortage, while making the cement manufacturing process capture carbon dioxide instead of emitting it. Scientists at Northwestern University grew this stuff out of seawater, electricity and CO2.Continue ReadingCategory: Materials, ScienceTags: Concrete, Climate Solutions: Cement, Cement, Climate Solutions: Cement,
Search results for seawater
Cement sand substitute made directly from seawater, electricity and CO2
Posted by ArielTechGeek 39 days ago (https://newatlas.com)
Muscle-powered mechanism desalinates up to 8 liters of seawater per hour
Posted by ArielTechGeek 162 days ago (https://newatlas.com)
It's ironic that even when surrounded by water, sailors who are lost at sea can still die of thirst. The QuenchSea 3.0 portable desalinator is designed to keep that from happening, and it requires no power source other than its user's arm muscles.Continue ReadingCategory: Outdoors, LifestyleTags: Kickstarter, Desalination, Water, Osmosis
Seawater plant will capture 10 tons of CO2 and make 300 kg of H2 per day
Posted by ArielTechGeek 426 days ago (https://newatlas.com)
After successful pilot programs, UCLA has partnered with Singapore’s national water agency and others to build the world’s largest ocean-based carbon dioxide removal plant capable of removing 3,650 metric tons (8,046,873 lb) of the greenhouse gas per year while producing 105 metric tons (231,000 lb) of carbon-negative hydrogen.Continue ReadingCategory: Energy, ScienceTags: Carbon Dioxide, Carbon
MIT team makes a case for direct carbon capture from seawater, not air
Posted by ArielTechGeek 803 days ago (https://newatlas.com)
Pulling greenhouse gases out of water is an odd-sounding idea, but the oceans are the planet's number one carbon sink, and direct air carbon capture has pretty serious problems: it costs a lot, and uses a lot of energy. According to IEA figures from 2022, even the more efficient air capture technologies require about 6.6 gigajoules of energy, or 1.83 megawatt-hours per ton of carbon dioxide captu
the researchers at rmit used an electrolyzer to send an electric current through water and split it into its component elements of hydrogen and oxygen.
The post researchers develop cheap, energy-efficient way to make hydrogen directly from seawater appeared first on designboom | architecture & design magazine.
"Exceptional" new catalyst cheaply splits hydrogen from seawater
Posted by ArielTechGeek 806 days ago (https://newatlas.com)
Green hydrogen can't be viewed as environmentally friendly if it drinks huge amounts of fresh water, or results in the bulk output of toxic chlorine, according to RMIT researchers who say they've come up with a cheap technique that does neither.Continue ReadingCategory: Energy, ScienceTags: Hydrogen, RMIT, Ocean
Acid coating converts regular electrolyzers to split seawater
Posted by ArielTechGeek 818 days ago (https://newatlas.com)
An international team from the University of Adelaide, Australia, Tianjin and Nankai Universities in China and Kent State University in the US has published new research claiming that a simple, cheap acid layer over the catalyst in an electrolyzer allows it to split seawater with "nearly 100 per cent efficiency," without any pre-treatment other than filtering.Continue ReadingCategory: Energy, Sci
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