title: Multimetallic Hierarchical Aerogels: Shape Engineering of the Building Blocks for Efficient Electrocatalysis.
abstract: A new class of multimetallic hierarchical aerogels composed entirely of interconnected Ni-PdxPtynano-building-blocks with in situ engineered morphologies and compositions is demonstrated. The underlying mechanism of the galvanic shape-engineering is elucidated in terms of nanowelding of intermediate nanoparticles. The hierarchical aerogels integrate two levels of porous structures, leading to improved electrocatalysis performance.
authors.affiliation: Physikalische Chemie, Center for Advancing Electronics Dresden, Technische Universität Dresden, Bergstraße 66b, 01062, Dresden, Germany.
authors.forename: Bin
authors.initials: B
authors.lastname: Cai
authors.affiliation: Institute for Materials Science and Max Bergmann Center of Biomaterials, Center for Advancing Electronics Dresden, Technische Universität Dresden, Hallwachsstraße 3, 01069, Dresden, Germany.
authors.forename: Arezoo
authors.initials: A
authors.lastname: Dianat
authors.affiliation: Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328, Dresden, Germany.
authors.forename: René
authors.initials: R
authors.lastname: Hübner
authors.affiliation: Physikalische Chemie, Center for Advancing Electronics Dresden, Technische Universität Dresden, Bergstraße 66b, 01062, Dresden, Germany.
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.affiliation: Physikalische Chemie, Center for Advancing Electronics Dresden, Technische Universität Dresden, Bergstraße 66b, 01062, Dresden, Germany.
authors.forename: Dan
authors.initials: D
authors.lastname: Wen
authors.affiliation: Physikalische Chemie, Center for Advancing Electronics Dresden, Technische Universität Dresden, Bergstraße 66b, 01062, Dresden, Germany.
authors.forename: Albrecht
authors.initials: A
authors.lastname: Benad
authors.affiliation: Physikalische Chemie, Center for Advancing Electronics Dresden, Technische Universität Dresden, Bergstraße 66b, 01062, Dresden, Germany.
authors.forename: Luisa
authors.initials: L
authors.lastname: Sonntag
authors.affiliation: Institute for Complex Materials, IFW Dresden, D-01171, Dresden, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Gemming
authors.affiliation: Institute for Materials Science and Max Bergmann Center of Biomaterials, Center for Advancing Electronics Dresden, Technische Universität Dresden, Hallwachsstraße 3, 01069, Dresden, Germany.
authors.forename: Gianaurelio
authors.initials: G
authors.lastname: Cuniberti
authors.affiliation: Physikalische Chemie, Center for Advancing Electronics Dresden, Technische Universität Dresden, Bergstraße 66b, 01062, Dresden, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Eychmüller
keywords: aerogels; electrocatalysts; ethanol oxidation; hierarchical structures; sol-gel processes