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Metalized aerogels for applications in Catalysis

Tannert, René and Schestakow, Maria and Muench, Falk and Ensinger, Wolfgang and Milow, Barbara (2019) Metalized aerogels for applications in Catalysis. 6th International Conference on Multifunctional, Hybrid and Nanomaterials 2019, 10.-15. März 2019, Sitges, Spanien.

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Abstract

In heterogeneous catalysis, carrier systems are most often composed of inorganic materials whereas organic scaffolds are much less represented. Heterogeneous catalysis using metal nanoparticles often suffers from loss of activity over time due to undesired release of metal into the reaction medium (catalyst bleeding). As an alternative to the direct loading of nanoparticles to the matrices, we have developed electroless plating methods for porous bodies that afford metal loading as films rather than particles. These films are distributed more evenly among the inner surface of the porous scaffold and less prone to typical degradation mechanisms such as nanoparticle detachment, nanoparticle agglomeration, or leaching. Here, we show that aerogels can be metalized using the electroless plating approach. More specifically, we demonstrate the homogenous decoration of porous organic scaffolds based on cellulose and resorcinol-formaldehyde with various transition metals including silver, gold, platinum, and others. Finally, the catalytic activity of our metalized aerogels is demonstrated and compared to nanoparticle-based catalyst systems. Preliminary spectroscopic tests indicate that there is no significant leaching of metal.

Item URL in elib:https://elib.dlr.de/127025/
Document Type:Conference or Workshop Item (Poster)
Title:Metalized aerogels for applications in Catalysis
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Tannert, RenéRene.Tannert (at) dlr.dehttps://orcid.org/0000-0001-9484-8886
Schestakow, Mariamaria.schestakow (at) dlr.dehttps://orcid.org/0000-0002-9392-8371
Muench, Falkmuench (at) ca.tu-darmstadt.deUNSPECIFIED
Ensinger, Wolfgangensinger (at) ma.tu-darmstadt.deUNSPECIFIED
Milow, BarbaraBarbara.Milow (at) dlr.dehttps://orcid.org/0000-0002-6350-7728
Date:11 March 2019
Refereed publication:Yes
Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:aerogels, electroless plating, catalysis
Event Title:6th International Conference on Multifunctional, Hybrid and Nanomaterials 2019
Event Location:Sitges, Spanien
Event Type:international Conference
Event Dates:10.-15. März 2019
Organizer:Elsevier
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - NGC Fahrzeugstruktur II
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogele
Deposited By: Tannert, Dr. René
Deposited On:11 Apr 2019 10:30
Last Modified:06 Nov 2019 15:39

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