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


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Chang B. S. , Thomas B., Chen J., Tevis I. D. , Karanja P., Cinar S. , ...More

NANOSCALE, vol.11, no.29, pp.14060-14069, 2019 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 11 Issue: 29
  • Publication Date: 2019
  • Doi Number: 10.1039/c9nr05448k
  • Title of Journal : NANOSCALE
  • Page Numbers: pp.14060-14069

Abstract

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.