44838
2016
2016
eng
28019
28029
11
8
article
American Chemical Society
Washington
1
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Yolk@Shell Nanoarchitectures with Bimetallic Nanocores - Synthesis and Electrocatalytic Applications
Earth & planetary science letters
10.1021/acsami.6b06595
1944-8244
wos2016:2019
WOS:000385992400068
Fischer, A (reprint author), Tech Univ Berlin, Dept Chem, Str 17 Juni 135,Sek TK1, D-10623 Berlin, Germany.; Fischer, A (reprint author), Univ Maine, Univ Bretagne Loire, IMMM, UMR CNRS 6283, Ave O Messiaen, F-72085 Le Mans, France.; Fischer, A (reprint author), Univ Freiburg, Freiburger Mat Forschungszentrum, Stefan Meier Str 19, D-79104 Freiburg, Germany.; Fischer, A (reprint author), Univ Freiburg, Inst Inorgan & Analyt Chem, Albertstr 21, D-79104 Freiburg, Germany., anna.fischer@ac.uni-freiburg.de
Cluster of Excellence "Unifying Concepts in Catalysis" by the Deutsche Forschungsgemeinschaft [EXC-314/2]; EDELKAT project by the German Federal Ministry of Education and Research (BMBF) [FKZ:03X5524]
importub
2020-03-22T13:31:01+00:00
filename=package.tar
9ef68bc78d7006651e13cf9d93329231
Amandine Guiet
Tobias Unmüssig
Caren Göbel
Ulla Vainio
Markus Wollgarten
Matthias Driess
Helmut Schlaad
Jörg Polte
Anna Fischer
eng
uncontrolled
AgAu alloy nanoparticles
eng
uncontrolled
tin-rich ITO
eng
uncontrolled
yolk@shell materials
eng
uncontrolled
nanoreactor
eng
uncontrolled
soft-templating
eng
uncontrolled
inverse micelles
eng
uncontrolled
polystyrene-block-poly(4-vinylpyridine)
Institut für Chemie
Referiert
Import
38504
2015
2015
eng
6228
6240
13
39
25
article
Wiley-VCH
Weinheim
1
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Hydrophobic Nanoreactor Soft-Templating: A Supramolecular Approach to Yolk@Shell Materials
Due to their unique morphology-related properties, yolk@shell materials are promising materials for catalysis, drug delivery, energy conversion, and storage. Despite their proven potential, large-scale applications are however limited due to demanding synthesis protocols. Overcoming these limitations, a simple soft-templated approach for the one-pot synthesis of yolk@shell nanocomposites and in particular of multicore metal nanoparticle@metal oxide nanostructures (M-NP@MOx) is introduced. The approach here, as demonstrated for Au-NP@ITOTR (ITOTR standing for tin-rich ITO), relies on polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) inverse micelles as two compartment nanoreactor templates. While the hydrophilic P4VP core incorporates the hydrophilic metal precursor, the hydrophobic PS corona takes up the hydrophobic metal oxide precursor. As a result, interfacial reactions between the precursors can take place, leading to the formation of yolk@shell structures in solution. Once calcined these micelles yield Au-NP@ITOTR nanostructures, composed of multiple 6 nm sized Au NPs strongly anchored onto the inner surface of porous 35 nm sized ITOTR hollow spheres. Although of multicore nature, only limited sintering of the metal nanoparticles is observed at high temperatures (700 degrees C). In addition, the as-synthesized yolk@shell structures exhibit high and stable activity toward CO electrooxidation, thus demonstrating the applicability of our approach for the design of functional yolk@shell nanocatalysts.
Advanced functional materials
10.1002/adfm.201502388
1616-301X
1616-3028
wos:2015
WOS:000363207000009
Guiet, A (reprint author), Tech Univ Berlin, Dept Chem, Str 17 Juni 135, D-10623 Berlin, Germany., anna.fischer@ac.uni-freiburg.de
Cluster of Excellence "Unifying Concepts in Catalysis" [EXC-314/2];
Deutsche Forschungsgemeinschaft; BMBF [FZ 03X5524]; DFG [FI 1885/1-1,
1613]
Amandine Guiet
Caren Goebel
Katharina Klingan
Michael Lublow
Tobias Reier
Ulla Vainio
Ralph Kraehnert
Helmut Schlaad
Peter Strasser
Ivelina Zaharieva
Holger Dau
Matthias Driess
Joerg Polte
Anna Fischer
eng
uncontrolled
inverse micelles
eng
uncontrolled
nanoreactor
eng
uncontrolled
polystyrene-block-poly(4-vinylpyridine)
eng
uncontrolled
soft-templating
eng
uncontrolled
tin-rich ITO
eng
uncontrolled
yolk@shell materials
Institut für Chemie
Referiert