• Competitive reactivity drives size- and composition-focusing in multimetallic nanocrystals
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  • 2026-05-08 18:39:10|
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ㅇ [Title]         Competitive reactivity drives size- and composition-focusing in multimetallic nanocrystals



  

ㅇ [Journal]    Science


                                                                         
ㅇ [Author]     Jeesoo Yoon,* Jinwon Oh,* Dongjun Kim, Pin-Hung Chung, NaHyeon Hong, Jake Heinlein, Carlos Lizandara-Pueyo, Roel S. Sánchez-Carrera, Jungwon Park, Hee-Tae Jung†                                                           
                               & Matteo Cargnello‡



 


ㅇ [Abstrct]


Multimetallic nanocrystals (NCs) offer unique properties driven by synergistic interactions among their constituent metals. While colloidal chemistry enables control over size

and composition, competing reactivities among metal precursors often complicate the synthesis of complex NCs. Here, we systematically elucidate how the competitive reactivity

of different metals in solution can be exploited to synthesize uniform pentametallic NCs despite numerous competing pathways. Mechanistic studies reveal heterodimers as key

intermediates that mediate further metal incorporation via selective nucleation. Remarkably, the addition of more metals suppresses homogeneous nucleation, resulting in size-

and composition-focusing to produce complex NCs with distinct multimetallic domains. When supported, these NCs show excellent thermal stability and catalytic activity for ammonia

decomposition, offering a promising strategy for designing complex nanomaterials for energy-related applications.


 





 
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