Determination of Core–Shell Structures in Pd‐Hg Nanoparticles by STEM‐EDX | Zendy

Deiana Davide | Zendy; VerdaguerCasadevall Arnau | Zendy; Malacrida Paolo | Zendy; Stephens Ifan E. L. | Zendy; Chorkendorff Ib | Zendy; Wagner Jakob B. | Zendy; Hansen Thomas W. | Zendy

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

Author(s) -

Deiana Davide,

VerdaguerCasadevall Arnau,

Malacrida Paolo,

Stephens Ifan E. L.,

Chorkendorff Ib,

Wagner Jakob B.,

Hansen Thomas W.

Publication year - 2015

Publication title -

chemcatchem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.497

H-Index - 106

eISSN - 1867-3899

pISSN - 1867-3880

DOI - 10.1002/cctc.201500791

Subject(s) - scanning transmission electron microscopy , nanoparticle , transmission electron microscopy , electrocatalyst , alloy , high resolution transmission electron microscopy , shell (structure) , materials science , scanning electron microscope , oxygen , hydrogen peroxide , selectivity , chemistry , crystallography , inorganic chemistry , catalysis , nanotechnology , electrochemistry , metallurgy , electrode , organic chemistry , composite material

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 H 2 O 2 .

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