Precisely constructing asymmetric triple atoms for highly efficient electrocatalysis

 Precisely constructing asymmetric triple atoms for highly efficient electrocatalysis

Triple-atom catalysts (TACs) are promising for surpassing the activity of normal single-atom and dual-atom catalysts. However, the rational design and construction of TACs remain challenging. Herein, we developed asymmetric Pt-Ru-Co triple atoms (TAs) by using selective atomic layer deposition technology.
Compared with the corresponding single-atom and dual-atom counterparts, they demonstrate superior electrocatalytic performance in both the hydrogen evolution reaction (HER) and hydrogen oxidation reaction (HOR). Operando X-ray absorption spectroscopy (XAS) revealed that the heterogeneous atoms within Pt-Ru-Co TAs have strong interactions and serve as active centers, synergistically accelerating reaction kinetics. 
Additionally, theoretical calculations indicate that introducing Co atoms effectively optimizes the d orbital electronic structure of Pt and Ru, endowing enhanced catalytic activity of the Pt-Ru-Co TAs. This work presents asymmetric Pt-Ru-Co TAs with excellent electrocatalytic activity and provides new insights into the catalytic mechanism of TACs.

Global Particle Physics Excellence Awards

More Info: physicistparticle.com

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#Electrocatalysis 
#TripleAtomCatalyst 
#AsymmetricAtoms 
#NanoCatalysis 
#EnergyConversion 
#HydrogenEvolution 
#OxygenReduction 
#FuelCells 
#RenewableEnergy 
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