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So‐Called “Metal‐Free” Oxygen Reduction at Graphene Nanoribbons is in fact Metal Driven
Author(s) -
Wang Lu,
Wong Colin Hong An,
Kherzi Bahareh,
Webster Richard D.,
Pumera Martin
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.201500262
Subject(s) - graphene , graphene nanoribbons , metal , catalysis , electrochemistry , materials science , nanotechnology , oxygen reduction , chemistry , electrode , metallurgy , organic chemistry
The oxygen reduction reaction (ORR) is of key importance in the field of electrochemical energy production. Remarkable catalytic properties of “metal‐free” graphene nanoribbons towards the ORR were suggested in previous reports. Herein, we show that the electrocatalytic properties of an undoped supposedly “metal‐free” graphene nanoribbon towards the ORR is actually caused by metallic impurities within the graphene nanoribbons.