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Critical roles of metal–ligand complexes in the controlled synthesis of various metal nanoclusters

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Title
Critical roles of metal–ligand complexes in the controlled synthesis of various metal nanoclusters
Author(s)
Ji Soo Kim; Hogeun Chang; Sungsu Kang; Cha, S.; Hanguk Cho; Kwak, S.J.; Park, N.; Younhwa Kim; Dohun Kang; Chyan Kyung Song; Jimin Kwag; Hahn, J.-S.; Lee, W.B.; Taeghwan Hyeon; Jungwon Park
Publication Date
2023-06
Journal
Nature Communications, v.14, no.1
Publisher
Nature Research
Abstract
Metal nanoclusters (NCs), an important class of nanoparticles (NPs), are extremely small in size and possess quasi-molecular properties. Due to accurate stoichiometry of constituent atoms and ligands, NCs have strong structure-property relationship. The synthesis of NCs is seemingly similar to that of NPs as both are formed by colloidal phase transitions. However, they are considerably different because of metal-ligand complexes in NC synthesis. Reactive ligands can convert metal salts to complexes, actual precursors to metal NCs. During the complex formation, various metal species occur, having different reactivity and fraction depending on synthetic conditions. It can alter their degree of participation in NC synthesis and the homogeneity of final products. Herein, we investigate the effects of complex formation on the entire NC synthesis. By controlling the fraction of various Au species showing different reactivity, we find that the extent of complex formation alters reduction kinetics and the uniformity of Au NCs. We demonstrate that this concept can be universally applied to synthesize Ag, Pt, Pd, and Rh NCs. © 2023, The Author(s).
URI
https://pr.ibs.re.kr/handle/8788114/14406
DOI
10.1038/s41467-023-38955-y
ISSN
2041-1723
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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