A crystal glass-nanostructured Al-based electrocatalyst for hydrogen evolution reaction.

ABSTRACT: Platinum-based catalysts are widely used in hydrogen evolution reactions; however, their applications are restricted because of the cost-efficiency trade-off. Here, we present a thermodynamics-based design strategy for synthesizing an Al₇₃Mn₇Ru₂₀ (atomic %) metal catalyst via combinatorial magnetron co-sputtering. The new electrocatalyst is composed of ~2 nanometers of medium-entropy nanocrystals surrounded by ~2 nanometers of amorphous regions. The catalyst exhibits exceptional performance, similar to that of single-atom catalysts and better than that of nanocluster-based catalysts. We use aluminum rather than a noble metal as the principal element of the catalyst and ruthenium, which is cheaper than platinum, as the noble metal component. The design strat

SUBMITTER: Liu S 

PROVIDER: S-EPMC9635819 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature