Chirality Transfer in Galvanic Replacement Reactions.

Clicks: 280
ID: 54371
2019
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Abstract
Demand for the transfer of chirality from a pre-engineered nanoparticle to any other metal is of fundamental importance for developing a wide range of chirality-related applications. Herein, we show that binary alloy chiral nanoparticles (CNPs) with an engineerable composition can be formed from metallic CNPs with intrinsic structural chirality serving as sacrificial templates (STs), via a galvanic replacement reaction (GRR). This GRR-mediated chirality transfer is a general phenomenon and results in the formation of Cu-Ag CNPs with solid morphology and mesoporous CNPs made of Ag-Au, Ag-Pt, and Ag-Pd. Our study imposes a new component, i.e., structural chirality, on the GRR. The insights from our study improve our fundamental understanding of the GRR principle and devise a versatile method to generate mesoporous alloy CNPs for developing prominent chirality-related applications in asymmetric catalysis, enantiodifferentiation, enantioseparation, biodetection, and bioimaging.
Reference Key
liu2019chiralitynano Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Liu, Junjun;Ni, Ziyue;Nandi, Proloy;Mirsaidov, Utkur;Huang, Zhifeng;
Journal Nano letters
Year 2019
DOI
10.1021/acs.nanolett.9b03117
URL
Keywords
galvanic replacement reaction binary alloy chiral nanoparticles chirality transfer glancing angle deposition

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