Platinum-group elements (PGEs) are a set of closely related transition metals—ruthenium, rhodium, palladium, osmium, iridium, and platinum—characterized by high melting points, remarkable chemical inertness, and similar electronic configurations dominated by partially filled 4d or 5d orbitals. They commonly occur together in magmatic sulfide and ultramafic-hosted deposits and exhibit strong chalcophile and siderophile behavior, making them key tracers in geochemistry, cosmochemistry, and core–mantle differentiation studies. PGEs are also central in catalysis research due to their unique surface chemisorption properties, multielectron redox behavior, and stability under harsh reaction conditions.
Western Australian hydrothermal and magmatic deposits that formed several hundred kilometers apart more than two and half billion years ago share more commonalities than previously thought.
Earth Sciences
Feb 19, 2026
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21
If humankind is to explore deep space, one small passenger should not be left behind: microbes. In fact, it would be impossible to leave them behind, since they live on and in our bodies, surfaces and food. Learning how they ...
Space Exploration
Feb 11, 2026
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76
A team of researchers, led by Professor Soo-Hyun Kim in the Graduate School of Semiconductors Materials and Devices Engineering and the Department of Materials Science and Engineering at UNIST has made significant progress ...
Nanomaterials
Jan 3, 2024
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103
Ethanol fuel cells are regarded as promising sources of green electricity. However, expensive platinum catalysts are used in their production. Research on laser melting of suspensions carried out at the Institute of Nuclear ...
Nanomaterials
Nov 9, 2023
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165
Membrane electrode assembly is the core part of proton exchange membrane fuel cells (PEMFCs). However, the high consumption of platinum and poor durability of carbon supported platinum nanoparticles (Pt/C) in the conventional ...
Nanomaterials
Aug 20, 2021
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245
