Key Highlights
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A new zinc-bromine battery design uses specially engineered current collectors to achieve over 99% zinc utilization and a high areal capacity of 50 mAh cm⁻². This breakthrough enables a battery that can last for 20,000 cycles, making it a strong candidate for large-scale, long-duration energy storage from renewable sources.
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Researchers have developed a tandem process that first uses electricity to turn CO₂ and water into syngas, then uses heat to convert that gas into solid carbon nanofibers. This method provides a way to not just recycle CO₂, but to lock it away in a valuable, stable material, offering a potential path to achieve net-negative carbon emissions.
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Adding a common, green material called hydroxyethyl cellulose to a zinc battery electrolyte creates a protective layer on the metal, preventing damaging side reactions and dendrite growth. This simple additive allows zinc batteries to operate stably for over 2300 hours, significantly improving their lifespan and reliability for grid storage.
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Public opinion in the UK on using underground aquifers to store thermal energy (heat or cold) is highly varied and depends on individual attitudes and specific project details. Understanding this complex public sentiment is crucial for designing and communicating about geothermal storage projects to ensure they gain social acceptance and succeed.
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Analysis of bubbles trapped in ancient volcanic glass from the massive Toba eruption suggests the magma was already highly gaseous before it exploded. This pre-existing “vesicularity” may have been a key factor in driving the extraordinary scale of one of Earth’s largest known super-eruptions.
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