Ambient synthesis of nanomaterials by in situ heterogeneous metal/ligand reactions

Coordination polymers are ideal synthons in creating high aspect ratio nanostructures, however, conventional synthetic methods are often restricted to batch-wise and costly processes. Herein, we demonstrate a non-traditional, frugal approach to synthesize 1D coordination polymers by in situ etching...

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Bibliographic Details
Published in:Nanoscale 2019-08, Vol.11 (29), p.14060-14069
Main Authors: Chang, Boyce S, Thomas, Brijith, Chen, Jiahao, Tevis, Ian D, Karanja, Paul, Çınar, Simge, Venkatesh, Amrit, Rossini, Aaron J, Thuo, Martin M
Format: Article
Language:English
Subjects:
Carboxylic acids
Chemical synthesis
Coordination polymers
Crystal structure
Etchants
High aspect ratio
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Ligands
Metal particles
Morphology
Nanomaterials
NANOSCIENCE AND NANOTECHNOLOGY
Polymers
Stoichiometry
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Summary:Coordination polymers are ideal synthons in creating high aspect ratio nanostructures, however, conventional synthetic methods are often restricted to batch-wise and costly processes. Herein, we demonstrate a non-traditional, frugal approach to synthesize 1D coordination polymers by in situ etching of zerovalent metal particle precursors. This procedure is denoted as the heterogeneous metal/ligand reaction and was demonstrated on Group 13 metals as a proof of concept. Simple carboxylic acids supply the etchant protons and ligands for metal ions (conjugate base) in a 1 : 1 ratio. This scalable reaction produces a 1D polymer that assembles into high-aspect ratio 'nanobeams'. We demonstrate control over crystal structure and morphology by tuning the: (i) metal center, (ii) stoichiometry and (iii) structure of the ligands. This work presents a general scalable method for continuous, heat free and water-based coordination polymer synthesis.
ISSN:2040-3364
2040-3372
DOI:10.1039/c9nr05448k