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Issue 1, 2016
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The intriguing poison tolerance of non-precious metal oxygen reduction reaction (ORR) catalysts

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Abstract

Electrochemical devices such as fuel cells are key to a sustainable energy future. However the applicability of such under realistic conditions is not viable to date. Expensive precious metals are used as electrocatalysts and contaminants present in the operating media poison the utilized catalysts. Here the one pot synthesis of a highly active, self-supporting and surprisingly poison tolerant catalyst is reported. The polymerisation of 1,5-diaminonaphthalene provides self-assembled nanospheres, which upon pyrolysis form a catalytically active high surface area material. Tolerance to a wide range of substances that poison precious metal based catalysts combined with high electrocatalytic activity might enable numerous additional technological applications. In addition to fuel cells these could be metal–air batteries, oxygen-depolarized chlor-alkali cathodes, oxygen sensors, medical implantable devices, waste water treatment and as counter electrodes for many other sensors where the operating medium is a complex and challenging mixture.

Graphical abstract: The intriguing poison tolerance of non-precious metal oxygen reduction reaction (ORR) catalysts

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Supplementary files

Article information


Submitted
30 Sep 2015
Accepted
16 Nov 2015
First published
17 Nov 2015

This article is Open Access

J. Mater. Chem. A, 2016,4, 142-152
Article type
Paper
Author version available

The intriguing poison tolerance of non-precious metal oxygen reduction reaction (ORR) catalysts

D. Malko, T. Lopes, E. Symianakis and A. R. Kucernak, J. Mater. Chem. A, 2016, 4, 142
DOI: 10.1039/C5TA05794A

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