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Multimetallic Hierarchical Aerogels: Shape Engineering of the Building Blocks for Efficient Electrocatalysis
Author(s) -
Cai Bin,
Dianat Arezoo,
Hübner René,
Liu Wei,
Wen Dan,
Benad Albrecht,
Sonntag Luisa,
Gemming Thomas,
Cuniberti Gianaurelio,
Eychmüller Alexander
Publication year - 2017
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201605254
Subject(s) - electrocatalyst , materials science , galvanic cell , nanotechnology , nanoparticle , class (philosophy) , computer science , electrochemistry , electrode , artificial intelligence , physics , metallurgy , quantum mechanics
A new class of multimetallic hierarchical aerogels composed entirely of interconnected Ni‐Pd x Pt y nano‐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.