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Low-temperature liquid platinum catalyst
- Source :
- Nature Chemistry. 14:935-941
- Publication Year :
- 2022
- Publisher :
- Springer Science and Business Media LLC, 2022.
-
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.
- Subjects :
- General Chemical Engineering
General Chemistry
Subjects
Details
- ISSN :
- 17554349 and 17554330
- Volume :
- 14
- Database :
- OpenAIRE
- Journal :
- Nature Chemistry
- Accession number :
- edsair.doi.dedup.....672f925a293844305c001f9160d87af7