Correlating Oxygen Reduction Reaction Activity and Structural Rearrangements in MgO-Supported Platinum Nanoparticles

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Abstract

We develop a multi-scale approach towards the design of metallic nanoparticles with applications as catalysts in electro- chemical reactions. The here discussed method exploits the relationship between nanoparticle architecture and electro- chemical activity and is applied to study the catalytic properties
of MgO(100)-supported Pt nanosystems undergoing solid-solid and solid-liquid transitions. We observe that a major increment in the activity is associated to the reconstruction of the interface layers, supporting the need for a full geometrical character- isation of such structures also when in-operando.
Original languageEnglish
Pages (from-to)3037-3044
Number of pages8
JournalChemPhysChem
Volume20
Issue number22
Early online date3 Sept 2019
DOIs
Publication statusPublished - 19 Nov 2019

Keywords

  • electrocatalysis
  • generalised coordination number
  • molecular dynamics
  • platinum
  • supported nanoparticle

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