Issue 7, 2011
From the journal:

CrystEngComm

The interplay of crystallization kinetics and morphology during the formation of SnO2nanorods: snapshots of the crystallization from fast microwave reactions†

Alexander Birkel,a   Frank Reuter,a   Dominik Koll,a   Stefan Frank,a   Robert Branscheid,b   Martin Panthöfer,a   Eva Rentschlera  and  Wolfgang Tremel*a  

* Corresponding authors

a Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Duesbergweg 10-14, Mainz, Germany
E-mail: tremel@uni-mainz.de
Fax: +49 (0)6131 39-25605
Tel: +49 (0)6131 39-25135

b Elektronenmikroskopie-Zentrum Mainz, Institut für Physikalische Chemie, Johannes Gutenberg—Universität, Jakob-Welder-Weg 11, Mainz, Germany

Abstract

A microwave-assisted reaction pathway to rutile SnO2nanorods was investigated. The microwave-treatment significantly reduces the reaction time compared to standard hydro-/solvothermal techniques. By moving the overall process into a shorter time slot, the growth and crystal formation during the reaction could be monitored via snapshots by trapping the intermediates through quenching. To gain a better insight into the template-free growth of one-dimensional (1D) nanostructures, a parameter-dependent (various temperatures/pressures and times were investigated) study was carried out. For all materials, the phase purity and crystallite sizes were determined by X-ray powder diffraction (XRD). The growth-orientation and terminating crystal faces of the reaction intermediates were determined using (HR)-TEM measurements. A growth mechanism was proposed. The optical properties were studied by means of Raman and infrared spectroscopy.

Graphical abstract: The interplay of crystallization kinetics and morphology during the formation of SnO2 nanorods: snapshots of the crystallization from fast microwave reactions

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Article information

DOI
https://doi.org/10.1039/C0CE00573H
Article type
Paper
Submitted
25 Aug 2010
Accepted
04 Jan 2011
First published
03 Feb 2011

CrystEngComm, 2011,13, 2487-2493

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The interplay of crystallization kinetics and morphology during the formation of SnO2 nanorods: snapshots of the crystallization from fast microwave reactions

A. Birkel, F. Reuter, D. Koll, S. Frank, R. Branscheid, M. Panthöfer, E. Rentschler and W. Tremel, CrystEngComm, 2011, 13, 2487 DOI: 10.1039/C0CE00573H

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