Determination of Core-Shell Structures in Pd-Hg Nanoparticles by STEM-EDX

Davide Deiana, Arnau Verdaguer Casadevall, Paolo Malacrida, Ifan Stephens, Ib Chorkendorff, Jakob Birkedal Wagner, Thomas Willum Hansen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The structural and elemental configuration of a high-performing Pd-Hg electrocatalyst for oxygen reduction to hydrogen peroxide has been studied by means of high-resolution scanning transmission electron microscopy. Pd-Hg nanoparticles are shown to have a crystalline core-shell structure, with a Pd core and a Pd-Hg ordered alloy shell. The ordered shell is responsible for the high oxygen reduction selectivity to H2O2.
Original languageEnglish
JournalChemCatChem
Volume7
Issue number22
Pages (from-to)3748-3752
Number of pages5
ISSN1867-3880
DOIs
Publication statusPublished - 2015

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