source:miningResearchers at Tsinghua University have devised a method for combining platinum and lanthanum as an alloy to serve as a catalyst in the next generation of fuel cells which will improve their performance and slash their cost.In a paper published in the journal Nano Research, the team behind the development points out that up until now, the type of fuel cell most commonly used in a number of devices, from satellites to the Space Shuttle, has been the alkaline fuel cell, whose invention dates back almost a century.The next generation is more likely to look something like Polymer Elec...
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2022
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Indian researchers spot rare supermassive black hole, opens new avenues for star formation research source：downtoearthA rare supermassive black hole has been spotted by a team of Indian researchers, according to a recent study.The monster black hole is about one billion light years away from the Earth, noted the study published in the Royal Astronomical Society’s monthly notices.The black hole in question was captured, spewing a jet of radiation and particles in one direction, unlike others that fire jets in opposite directions.“But strangely for this galaxy, only one side of the jet is s...
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2022
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Enhanced terrestrial Fe(II) mobilization identified through a novel mechanism of microbially driven cave formation in Fe(III)-rich rocks source:natureAbstractMost cave formation requires mass separation from a host rock in a process that operates outward from permeable pathways to create the cave void. Given the poor solubility of Fe(III) phases, such processes are insufficient to account for the significant iron formation caves (IFCs) seen in Brazilian banded iron formations (BIF) and associated rock. In this study we demonstrate that microbially-mediated reductive Fe(III) dissolution is...
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2022
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source:phys.orgResearchers have devised a method for combining high-cost platinum and a low-cost rare earth element, lanthanum, as an alloy to serve as a catalyst in the next generation of fuel cells that will improve their performance and slash their cost. The development should make it easier to decarbonize those heavy transport vehicles that are less suitable to the use of batteries.The method is described in a paper appearing in Nano Research.Batteries may have won the battle against hydrogen fuel cells for cleanly powering cars, but a number of other forms of transportation find it diffic...
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2022
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