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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.
Myekhlai, Munkhshur; Benedetti, Tania M; Gloag, Lucy; Poerwoprajitno, Agus R; Cheong, Soshan; Schuhmann, Wolfgang; Gooding, J Justin; Tilley, Richard D.
Affiliation
  • Myekhlai M; School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.
  • Benedetti TM; School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.
  • Gloag L; School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.
  • Poerwoprajitno AR; School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.
  • Cheong S; Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia.
  • Schuhmann W; Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, d-44780, Bochum, Germany.
  • Gooding JJ; School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.
  • Tilley RD; Australian Research Council Centre of Excellence in, Convergent Bio-Nano Science and Technology, School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.
Chemistry ; 26(67): 15501-15504, 2020 Dec 01.
Article in En | MEDLINE | ID: mdl-32844508
ABSTRACT
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.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Chemistry Journal subject: QUIMICA Year: 2020 Document type: Article Affiliation country: Australia
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Chemistry Journal subject: QUIMICA Year: 2020 Document type: Article Affiliation country: Australia