Issue 6, 2012

Mechanistic aspects of molecular formation and crystallization of zinc oxide nanoparticles in benzyl alcohol

Abstract

Zinc oxide nanostructures are known to exist in a great variety of morphologies. However, the underlying mechanisms leading to these architectures are far from being fully understood. Here, we present a time dependent study of the generation of zinc oxide nanorods, which arrange into bundles with a fan- or bouquet-like structure, using the benzyl alcohol route. The structural evolution of the nanoparticles was monitored by electron microscopy techniques, whereas the progress of the chemical reaction was followed by quantification of the organic by-products using gas chromatography. With this study we give a detailed insight into the formation of the zinc oxide structures, which involves a complex pathway based on many in parallel occurring processes such as crystallization of primary particles, their oriented attachment and surface reconstruction inside the nanoparticulate agglomerates. However, in spite of such an intricate growth behavior, the ZnO nanostructures are surprisingly uniform in size and shape.

Graphical abstract: Mechanistic aspects of molecular formation and crystallization of zinc oxide nanoparticles in benzyl alcohol

Supplementary files

Article information

Article type
Paper
Submitted
21 Oct 2011
Accepted
14 Nov 2011
First published
12 Dec 2011

Nanoscale, 2012,4, 1982-1995

Mechanistic aspects of molecular formation and crystallization of zinc oxide nanoparticles in benzyl alcohol

B. Ludi, M. J. Süess, I. A. Werner and M. Niederberger, Nanoscale, 2012, 4, 1982 DOI: 10.1039/C1NR11557J

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