AI Article Synopsis
- Understanding how metal atoms interact in catalytic systems is crucial for maximizing their effectiveness.
- Research shows that platinum dissolved in liquid gallium enhances catalytic reactions at lower temperatures without separating from the gallium matrix.
- This liquid catalyst demonstrates significantly higher efficiency in electrochemical methanol oxidation compared to traditional solid platinum catalysts, paving the way for new catalytic applications.
Article Abstract
Insights into metal-matrix interactions in atomically dispersed catalytic systems are necessary to exploit the true catalytic activity of isolated metal atoms. Distinct from catalytic atoms spatially separated but immobile in a solid matrix, here we demonstrate that a trace amount of platinum naturally dissolved in liquid gallium can drive a range of catalytic reactions with enhanced kinetics at low temperature (318 to 343 K). Molecular simulations provide evidence that the platinum atoms remain in a liquid state in the gallium matrix without atomic segregation and activate the surrounding gallium atoms for catalysis. When used for electrochemical methanol oxidation, the surface platinum atoms in the gallium-platinum system exhibit an activity of [Formula: see text] three orders of magnitude higher than existing solid platinum catalysts. Such a liquid catalyst system, with a dynamic interface, sets a foundation for future exploration of high-throughput catalysis.
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| http://dx.doi.org/10.1038/s41557-022-00965-6 | DOI Listing |
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