Issue 68, 2022

Aqueous transfer of colloidal metal oxide nanocrystals via base-driven ligand exchange

Abstract

A general method is developed for removal of native nonpolar oleate ligands from colloidal metal oxide nanocrystals of varying morphologies and compositions. Ligand stripping occurs by phase transfer into potassium hydroxide solution, yielding stable aqueous dispersions with little nanocrystal aggregation and without significant changes to the nanomaterials’ physical or chemical properties. This method enables facile fabrication of conductive films of ligand-free nanocrystals.

Graphical abstract: Aqueous transfer of colloidal metal oxide nanocrystals via base-driven ligand exchange

Supplementary files

Article information

Article type
Communication
Submitted
13 мај 2022
Accepted
29 јул. 2022
First published
03 авг. 2022

Chem. Commun., 2022,58, 9496-9499

Author version available

Aqueous transfer of colloidal metal oxide nanocrystals via base-driven ligand exchange

V. S. Lakhanpal, B. Z. Zydlewski, X. Y. Gan, H. Celio, H. “. Jhong, C. K. Ofosu and D. J. Milliron, Chem. Commun., 2022, 58, 9496 DOI: 10.1039/D2CC02416K

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