Article (Scientific journals)
Phosphine- and ammonium-functionalized ordered mesoporous carbons as supports for cluster-derived metal nanoparticles
Vidick, Deborah; Léonard, Alexandre; Poleunis, Claude et al.
2014In Catalysis Today, 235, p. 112-126
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Keywords :
Ordered Mesoporous Carbon; Functionalization; Bimetallic; Nanoparticles; Cluster
Abstract :
[en] An ordered mesoporous carbon (OMC) was functionalized with ammonium or chelating phosphine ligands. In both cases, the functionalization procedure started by oxidation by nitric acid treatment, followed by activation of surface carboxylic acid groups with thionyl chloride, then formation of amide bonds with diamines. The pendant amine groups were then either quaternized or further reacted with phosphine. The introduced functions were used as anchors for molecular mixed-metal clusters. These organometallic grafted species could then be thermally transformed into hetero-metallic nanoparticles (NP) embedded within the mesoporous framework. The NP/OMC nanocomposites could find application in hydrogenation, heterogeneous catalysis or as electrodes in fuel cells.
Disciplines :
Chemistry
Author, co-author :
Vidick, Deborah;  Université Catholique de Louvain - UCL > Institute of Condensed Matter and Nanosciences
Léonard, Alexandre  ;  Université de Liège - ULiège > Département de chimie appliquée > Ingéniérie électrochimique
Poleunis, Claude;  Université Catholique de Louvain - UCL > Institute of Condensed Matter and Nanosciences
Delcorte, Arnaud;  Université Catholique de Louvain - UCL > Institute of Condensed Matter and Nanosciences
Devillers, Michel;  Université Catholique de Louvain - UCL > Institute of Condensed Matter and Nanosciences
Hermans, Sophie;  Université Catholique de Louvain - UCL > Institute of Condensed Matter and Nanosciences
Language :
English
Title :
Phosphine- and ammonium-functionalized ordered mesoporous carbons as supports for cluster-derived metal nanoparticles
Publication date :
2014
Journal title :
Catalysis Today
ISSN :
0920-5861
eISSN :
1873-4308
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
235
Pages :
112-126
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 03 July 2014

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