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Dicyanamide Ionic Liquids: A Versatile Precursor System for Advanced Mesoporous Materials and Functional Composites

Published online by Cambridge University Press:  25 October 2012

Jens Peter Paraknowitsch,
Xenia Tuaev,
Peter Strasser and
Arne Thomas
Jens Peter Paraknowitsch
Affiliation:
Technical University of Berlin, Institute of Chemistry, Functional Materials Division, Hardenbergstr. 14, 10623 Berlin, Germany
Xenia Tuaev
Affiliation:
Technical University of Berlin, Institute of Chemistry, Chemical and Materials Engineering Division, Str. des 17. Juni 124, 10623 Berlin, Germany
Peter Strasser
Affiliation:
Technical University of Berlin, Institute of Chemistry, Chemical and Materials Engineering Division, Str. des 17. Juni 124, 10623 Berlin, Germany
Arne Thomas
Affiliation:
Technical University of Berlin, Institute of Chemistry, Functional Materials Division, Hardenbergstr. 14, 10623 Berlin, Germany
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Abstract

Ionic liquids (ILs) are highly suitable to act as precursors for nitrogen-doped carbon materials. Therefore two structural requirements must be fulfilled: On the one hand, the cation should carry nitrogen in a preferably aromatic environment, on the other hand nitrile groups are essential that can be e.g. incorporated by dicyanamide anions. Thermolysis of such ILs yields highly conductive nitrogen doped carbon exhibiting a graphitic microstructure. Furthermore, various nanomorphologies can be induced via hard-templating. The material has been shown to sufficiently suppress growth and agglomeration of Pt nanoparticles upon their electrocatalytic performance, when applied as a thin coating on the Pt host material. This novel concept of reactivity could further be applied in other fields of materials synthesis, paving the way for the one-pot synthesis of mesoporous carbon/silica composites and in-situ metal doping thereof.

Keywords

porositycatalyticC

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Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1473: Symposium BBB – Functional Materials and Ionic Liquids , 2012, mrss12-1473-bbb01-05
Copyright
Copyright © Materials Research Society 2012

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