Deuterium retention in 1350 K self-ion irradiated tungsten rises with damage dose to 1.7 at.% at 2.3 dpa without saturation, driven by nm-sized voids that trap D2 gas inside and D atoms on their surfaces.
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5 Pith papers cite this work. Polarity classification is still indexing.
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Material demands from highly decarbonised European energy models exceed population-based shares of global reserves for Ga, In, Ir, Te and to a lesser extent Ag, Se, V.
Ammonia poisons PEM fuel cell cathodes by ammonium ions displacing hydronium at sulfonic acid sites and forming hydronium-absorbing ion clusters via hydrogen bonds, with higher temperatures helping to break up clusters and restore proton transport.
316plus stainless steel keeps high cryogenic strength with hydrogen present but loses 40-50% ductility at 77 K and 20 K while still showing about 30% reduction in area.
Metal foam flow field cells outperform serpentine ones under 0.3 V constant voltage cold start, and a variable current mode that raises current density early improves heat generation while limiting water production.
citing papers explorer
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Damage dose dependence of deuterium retention in high-temperature self-ion irradiated tungsten
Deuterium retention in 1350 K self-ion irradiated tungsten rises with damage dose to 1.7 at.% at 2.3 dpa without saturation, driven by nm-sized voids that trap D2 gas inside and D atoms on their surfaces.
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Materealistic? How European energy system models exceed raw material reserves
Material demands from highly decarbonised European energy models exceed population-based shares of global reserves for Ga, In, Ir, Te and to a lesser extent Ag, Se, V.
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Poisoning mechanism of ammonia on proton transport and ionomer structure in cathode catalyst layer of PEM fuel cells
Ammonia poisons PEM fuel cell cathodes by ammonium ions displacing hydronium at sulfonic acid sites and forming hydronium-absorbing ion clusters via hydrogen bonds, with higher temperatures helping to break up clusters and restore proton transport.
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Cryogenic hydrogen embrittlement of 316plus (EN 1.4420) stainless steel at 77 K and 20 K
316plus stainless steel keeps high cryogenic strength with hydrogen present but loses 40-50% ductility at 77 K and 20 K while still showing about 30% reduction in area.
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Effect of startup modes on cold start performance of PEM fuel cells with different cathode flow fields
Metal foam flow field cells outperform serpentine ones under 0.3 V constant voltage cold start, and a variable current mode that raises current density early improves heat generation while limiting water production.