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This is a In Vitro Study study.

August 17, 2025

Water-based synthesis of supported ultra-small High-Entropy Alloy nanoparticles

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The supported nanoparticles reduce overpotential by 30 mV compared to a Pt/C benchmark in the hydrogen evolution reaction.
With a mean size of just 1.2 nm, the nanoparticles show effective dispersion of all five elements.
The hot-injection method using water and L-ascorbic acid enhances synthesis and reduces environmental impact.
The use of a carbon support significantly boosts the reaction kinetics of the nanoparticles.

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Experimental work demonstrates effective synthesis of small HEA nanoparticles, improving hydrogen evolution in electrocatalysis.

Nielsen et al. (2025) studied this question.

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