Format

Send to

Choose Destination
Chem Commun (Camb). 2014 Oct 28;50(84):12662-4. doi: 10.1039/c4cc03271c.

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

Author information

1
Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore. pumera@ntu.edu.sg pumera.research@gmail.com.

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.

PMID:
25204561
DOI:
10.1039/c4cc03271c

Supplemental Content

Full text links

Icon for Royal Society of Chemistry
Loading ...
Support Center