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Issue 39, 2011
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Synthesis of mesoporous composite materials of nitrogen-doped carbon and silica using a reactive surfactant approach

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Abstract

Mesoporous composite materials of nitrogen-doped carbon and silica were synthesised in a one-step-process applying a soft templating procedure. The template used in the sol–gel synthesis of the silica is a cationic surfactant with distinct reactivity to form nitrogen-doped graphitic carbon upon heating. This reactivity is derived from the combination of the dicyanamide anion with a nitrogen-containing pyridinium cation, as it is known from ionic liquids used as nitrogen-doped carbon precursors. Thus applying this surfactant in a conventional sol–gel synthesis yields a silica gel doped with a precursor for N-doped carbon. By subsequent annealing mesoporous composite materials of silica and nitrogen-doped carbon are obtained.

Graphical abstract: Synthesis of mesoporous composite materials of nitrogen-doped carbon and silica using a reactive surfactant approach

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Supplementary files

Article information


Submitted
15 Apr 2011
Accepted
02 Aug 2011
First published
25 Aug 2011

J. Mater. Chem., 2011,21, 15537-15543
Article type
Paper

Synthesis of mesoporous composite materials of nitrogen-doped carbon and silica using a reactive surfactant approach

J. P. Paraknowitsch, Y. Zhang and A. Thomas, J. Mater. Chem., 2011, 21, 15537
DOI: 10.1039/C1JM11633A

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