In:
Zeitschrift für Physikalische Chemie, Walter de Gruyter GmbH, Vol. 226, No. 11-12 ( 2012-12-1), p. 1219-1228
Abstract:
Nanostructured materials with high metal content are interesting for a number of applications, including catalysis as well as energy conversion and storage. Here we elaborate an approach that combines the advantages of simple silica sol-gel chemistry with the ability to tailor metal composition and structure by introducing a ligand that connects a silane with an amino acid or hydroxy acid. Reacting this ligand with a metal acetate generates a precursor for a range of metal-silica nanocomposites. Comparing this chemistry with conventional organic ligand-metal complexes that can be physically mixed into sol-gel derived silicates elucidates advantages, e.g. of going to high metal loadings. Resulting nanomaterials are characterized by a combination of small-angle X-ray scattering (SAXS), transmission electron microscopy (TEM), and solid-state nuclear magnetic resonance (NMR) to reveal structural characteristics on multiple lengths scales, i.e. from the microscopic (molecular) level (NMR) all the way to the mesoscale (SAXS) and macroscale (TEM).
Type of Medium:
Online Resource
ISSN:
2196-7156
,
0942-9352
DOI:
10.1524/zpch.2012.0295
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2012
detail.hit.zdb_id:
201103-7
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