source: Tohoku UniversityAn international group of researchers has developed a novel approach that enhances the efficiency of the oxygen evolution reaction (OER), a key process in renewable energy technologies. By introducing rare earth single atoms into manganese oxide (MnO2), the group successfully modulated oxygen electronic states, leading to unprecedented improvements in OER performance.Their findings were published in the journal Nano Energy on June 10, 2024.Transition-metal-based oxides have been widely explored for their potential as active OER catalysts. However, the capacity of these...
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2024
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source: Sandia National LaboratoriesResearch team studies selective sponges for rare-earth elementsSandia National Laboratories intern Kadie Marie Mei Sanchez works on a mass spectrometer used for quantifying the concentration of metals, such as the rare-earth elements separated by the tailored MOFs. Credit: Sandia National LaboratoriesRare-earth elements are everywhere in modern life, found in everything from the smart device you're reading this on to the LED lightbulbs overhead and neodymium magnets in electric vehicles and wind turbines.However, purifying these critical metals from ores...
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2024
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source:SMALL CAPSElevate Uranium (ASX: EL8) has reported high-grade assays from drilling at the Hirabeb prospect within the greater Koppies project in Namibia.The company completed 60 holes for a total of 1,334 metres, focused on a 4.5-kilometre strike length zone of mineralisation in the south-central area of the tenement.Standout intersections included 6m at 797 parts per million uranium oxide equivalent from 4.5m including 2m at 1,482ppm and 6.5m at 584ppm from 8.5m including 1.5m at 1,040ppm.The mineralisation is shallow, with all significant intercepts commencing within 10m of the surface...
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2024
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source:CosmosNewly discovered semiconductor nanocrystals could be used to develop highly efficient light-emitting devices and lasers.The nanocrystals are described in a new paper published in the American Chemical Society journal ACS Nano.Nanocrystals are often used in devices such as lasers or light-emitting diodes (LEDs). These are mainstays of modern technology, so finding more efficient ways of producing these semiconductor elements would mark a major advance in technology development.One challenge in nanocrystals is the so-called “dark” exciton.Excitons are essential in semiconductors. Th...
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2024
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