High-Performance Electrocatalysis on Palladium Aerogels


  • W.L. acknowledges support from the Alexander von Humboldt Foundation. This work was supported in part by DFG project EY16/10-2. We thank Ellen Kern for the SEM measurements and Stephen Hickey, Jan Poppe, Stefanie Tscharntke, Aliaksei Dubavik, Christoph Ziegler, Tobias Otto, Vladimir Lesnyak, and Thomas Hendel for their discussions and help.


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Nanostructures as catalysts: Pd aerogels modified with α-, β-, and γ-cyclodextrins can be obtained by the spontaneous self-assembly of in situ generated Pd nanoparticles. The Pd aerogels show excellent electrocatalytic activity for the oxidation of ethanol. The catalytic activity is believed to arise from the nonsupported nanometer-scale structure of the aerogel network and the interactions of ethanol with the cyclodextrin.