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Title Gold aerogels: Three-dimensional assembly of nanoparticles and their use as electrocatalytic interfaces
Date 26.04.2016
Number 49842
Abstract Three-dimensional (3D) porous metal nanostructures have been a long sought-after class of materials due to their collective properties and widespread applications. In this study, we report on a facile and versatile strategy for the formation of Au hydrogel networks involving the dopamine-induced 3D assembly of Au nanoparticles. Following supercritical drying, the resulting Au aerogels exhibit high surface areas and porosity. They are all composed of porous nanowire networks reflecting in their diameters those of the original particles (5–6 nm) via electron microscopy. Furthermore, electrocatalytic tests were carried out in the oxidation of some small molecules with Au aerogels tailored by different functional groups. The beta-cyclodextrin-modified Au aerogel, with a host–guest effect, represents a unique class of porous metal materials of considerable interest and promising applications for electrocatalysis.
Publisher ACS Nano
Identifier
Citation ACS Nano 10 (2016) 2559-2567
DOI https://doi.org/10.1021/acsnano.5b07505
Authors Wen, D. ; Liu, W. ; Haubold, D. ; Zhu, C. ; Oschatz, M. ; Holzschuh, M. ; Wolf, A. ; Simon, F. ; Kaskel, S. ; Eychmüller, A.
Tags au aerogels nanoparticle assembly dopamine electrocatalysis host-guest interaction porous metal inorganic nanoparticles metal nanocrystals palladium aerogels high-performance porous materials au glucose semiconductor cyclodextrins complexation

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