The Oxygen Reduction Reaction Rate of Metallic Nanoparticles during Catalyzed Oxidation.

Abstract:

:This work reports the oxygen reduction reaction (ORR) kinetics of metal nanoparticle catalysts between 500 and 600 °C at low oxygen partial pressures. Ex situ and in situ TEM measurements demonstrate catalyzed nanowire growth initially follows linear kinetics; characteristic of being ORR rate limited. The ORR rates of Ag, Au, Cu, Ni, Pd, Rh and Pt measured at 600 °C form a volcano plot versus relative oxidation potential. Cu nanoparticles produce the maximum ORR rate under these conditions.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Sun K,Xue J,Tai K,Dillon SJ

doi

10.1038/s41598-017-07717-4

subject

Has Abstract

pub_date

2017-08-01 00:00:00

pages

7017

issue

1

issn

2045-2322

pii

10.1038/s41598-017-07717-4

journal_volume

7

pub_type

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