Issue 84, 2014

Residual metallic impurities within carbon nanotubes play a dominant role in supposedly “metal-free” oxygen reduction reactions

Abstract

Oxygen reduction reactions (ORRs) are of key importance in the area of electrochemical energy production. The replacement of the Pt industrial standard with heteroatom doped metal-free carbon nanotubes was previously suggested for ORRs. Here we will show that the ORR electrocatalysis on these supposedly metal-free materials is likely in fact due to the presence of residual metallic impurities within the carbon nanotubes and that these impurities play a dominant role.

Graphical abstract: Residual metallic impurities within carbon nanotubes play a dominant role in supposedly “metal-free” oxygen reduction reactions

Supplementary files

Article information

Article type
Communication
Submitted
02 May 2014
Accepted
29 Aug 2014
First published
10 Sep 2014

Chem. Commun., 2014,50, 12662-12664

Author version available

Residual metallic impurities within carbon nanotubes play a dominant role in supposedly “metal-free” oxygen reduction reactions

L. Wang and M. Pumera, Chem. Commun., 2014, 50, 12662 DOI: 10.1039/C4CC03271C

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