Preparation of ZnO colloids by pyrolysis of [MeZnOiPr]4 in the presence of hexadecylamine and probing the surface chemistry of the nanoparticles by CO/CO2 adsorption studies followed by FTIR

Todor Hikov; Andre Rittermeier; Maik-Borris Luedemann; Christian Herrmann; Martin Muhler; Roland A. Fischer

doi:10.1039/B801304G

Preparation of ZnO colloids by pyrolysis of [MeZnOⁱPr]₄ in the presence of hexadecylamine and probing the surface chemistry of the nanoparticles by CO/CO₂adsorption studies followed by FTIR†

Todor Hikov,^a Andre Rittermeier,^b Maik-Borris Luedemann,^c Christian Herrmann,^c Martin Muhler^b and Roland A. Fischer*^a

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* Corresponding authors

^a Department II of Inorganic Chemistry—Organometallics & Materials, Ruhr-University Bochum, Universitaetsstraße 150, D-44780 Bochum, Germany
E-mail: roland.fischer@ruhr-uni-bochum.de
Fax: +0049 234 3214174
Tel: +0049 234 3224174

^b Department of Technical Chemistry, Ruhr University Bochum, Universitaetsstraße 150, D-44780 Bochum, Germany
E-mail: muhler@techem.ruhr-uni-bochum.de
Fax: +0049 234 3214115
Tel: +0049 234 3228754

^c Department of Physical Chemistry I—Protein Interactions, Ruhr-University Bochum, Universitaetsstraße 150, D-44780 Bochum, Germany
E-mail: Chr.Herrmann@rub.de
Fax: +0049 234 3214785
Tel: +0049 234 3224173

Abstract

ZnO nanoparticles with an average diameter of 3.5 nm were prepared by employing a new thermolysis route where the presence of catalytic amounts of water was essential for the completion of the reaction. The use of HDA as the capping ligand provided particle solubility in a wide range of non-polar solvents. The material was characterized using HRTEM, UV-VIS, DLS and XRD. In order to evaluate it as a model for MeOH active catalyst support, gas adsorption studies monitored in situ with FTIR were successfully employed. The facile penetration of CO₂ molecules through the organic shell and their subsequent conversion to a CO₃²⁻ species at the oxide surface is presented and discussed.

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Article information

DOI: https://doi.org/10.1039/B801304G
Article type: Paper
Submitted: 23 Jan 2008
Accepted: 25 Apr 2008
First published: 04 Jun 2008

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J. Mater. Chem., 2008,18, 3325-3331

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Preparation of ZnO colloids by pyrolysis of [MeZnOⁱPr]₄ in the presence of hexadecylamine and probing the surface chemistry of the nanoparticles by CO/CO₂ adsorption studies followed by FTIR

T. Hikov, A. Rittermeier, M. Luedemann, C. Herrmann, M. Muhler and R. A. Fischer, J. Mater. Chem., 2008, 18, 3325 DOI: 10.1039/B801304G

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