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Controlling the Number of Branches and Surface Facets of Pd‐Core Ru‐Branched Nanoparticles to Make Highly Active Oxygen Evolution Reaction Electrocatalysts
Author(s) -
Myekhlai Munkhshur,
Benedetti Tania M.,
Gloag Lucy,
Poerwoprajitno Agus R.,
Cheong Soshan,
Schuhmann Wolfgang,
Gooding J. Justin,
Tilley Richard D.
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202003561
Subject(s) - nanomaterial based catalyst , electrocatalyst , catalysis , nanoparticle , oxygen evolution , nanotechnology , materials science , hexagonal crystal system , active oxygen , chemical engineering , chemistry , crystallography , organic chemistry , electrode , electrochemistry , engineering
Producing stable but active materials is one of the enduring challenges in electrocatalysis and other types of catalysis. Producing branched nanoparticles is one potential solution. Controlling the number of branches and branch size of faceted branched nanoparticles is one of the major synthetic challenges to achieve highly active and stable nanocatalysts. Herein, we use a cubic‐core hexagonal‐branch mechanism to synthesize branched Ru nanoparticles with control over the size and number of branches. This structural control is the key to achieving high exposure of active {10–11} facets and optimum number of Ru branches that enables improved catalytic activity for oxygen evolution reaction while maintaining high stability.