Promoting the Electrocatalytic Performance of Noble Metal Aerogels by Ligand‐Directed Modulation

Noble metal aerogels (NMAs) are an emerging class of porous materials. Embracing nano‐sized highly‐active noble metals and porous structures, they display unprecedented performance in diverse electrocatalytic processes. However, various impurities, particularly organic ligands, are often involved in...

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Published inAngewandte Chemie Vol. 132; no. 14; pp. 5755 - 5760
Main Authors Fan, Xuelin, Zerebecki, Swen, Du, Ran, Hübner, René, Marzum, Galina, Jiang, Guocan, Hu, Yue, Barcikowki, Stephan, Reichenberger, Sven, Eychmüller, Alexander
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 27.03.2020
Subjects
Aerogele
Aerogels
Catalysts
Chemistry
Edelmetalle
Electron density
Elektrokatalyse
Gold
Impurities
Laser
Ligand
Ligands
Metals
Nanoparticles
Noble metals
Palladium
Porous materials
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Summary:Noble metal aerogels (NMAs) are an emerging class of porous materials. Embracing nano‐sized highly‐active noble metals and porous structures, they display unprecedented performance in diverse electrocatalytic processes. However, various impurities, particularly organic ligands, are often involved in the synthesis and remain in the corresponding products, hindering the investigation of the intrinsic electrocatalytic properties of NMAs. Here, starting from laser‐generated inorganic‐salt‐stabilized metal nanoparticles, various impurity‐free NMAs (Au, Pd, and Au‐Pd aerogels) were fabricated. In this light, we demonstrate not only the intrinsic electrocatalytic properties of NMAs, but also the prominent roles played by ligands in tuning electrocatalysis through modulating the electron density of catalysts. These findings may offer a new dimension to engineer and optimize the electrocatalytic performance for various NMAs and beyond. Das Gewicht in Gold wert: Ausgehend von lasergenerierten salzstabilisierten Nanopartikeln werden verschiedene reine Edelmetall‐Aerogele (NMAs) hergestellt, die auf ihre intrinsischen Eigenschaften untersucht werden können. Die wichtige Rolle der Liganden wird aus dem Elektronentransfer zwischen den NMAs und Liganden abgeleitet, und die Ergebnisse eröffnen eine neue Perspektive für die Entwicklung elektrokatalytischer Materialien.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201913079