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Promoting the Electrocatalytic Performance of Noble Metal Aerogels by Ligand‐Directed Modulation
Author(s) -
Fan Xuelin,
Zerebecki Swen,
Du Ran,
Hübner René,
Marzum Galina,
Jiang Guocan,
Hu Yue,
Barcikowki Stephan,
Reichenberger Sven,
Eychmüller Alexander
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201913079
Subject(s) - electrocatalyst , noble metal , materials science , nanotechnology , porosity , nanoparticle , ligand (biochemistry) , metal , impurity , chemical engineering , catalysis , electrochemistry , chemistry , electrode , composite material , organic chemistry , metallurgy , biochemistry , receptor , engineering
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.