#  Catalyst Affected by Nanoscale Wetting, Published in Nature Communications 

 





Bravo Garrick et al.!



 

July 09, 2025

 

 

In Nature Communications, Garrick et al. report how the sequence of preparing Pd8Au92/SiO2 catalysts (depositing Au on support then overgrowing Pd, or vice versa) is affected by nanoscale wetting effects at the Au/support interface. These effects tune the average size of Pd ensembles on the nanoparticle surface, consequently directing catalytic performance at a fixed bimetallic composition. Read it [here](https://www.nature.com/articles/s41467-025-61540-4).

   ![garrick_natcomm2024](/sites/g/files/omnuum6296/files/styles/hwp_1_1__720x720_scale/public/2025-07/garrick_natcomm.jpg?itok=GLH0sdEv) 

 

d2+ (in Na2PdCl4 solution) was reduced by ascorbic acid and overgrown as metallic Pd on Au NPs either **a** *after* or **b** *before* Au NP attachment to PS templating colloids. The NP-decorated raspberry colloids in **a** and **b** were then self-assembled into a colloidal crystal, infiltrated with a SiO2 sol–gel precursor, and calcined to remove the organic PS templates and alloy the NPs to yield the final **c** Pd–Au/SiO2 and **d** PdAu/SiO2 RCT catalysts, respectively.

 

 

 



 

 See also:- [ 2025 ](/year/2025)
 
 

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