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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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Publication details

The article was received on 30 Sep 2015, accepted on 16 Nov 2015 and first published on 17 Nov 2015


Article type: Paper
DOI: 10.1039/C5TA05794A
Citation: J. Mater. Chem. A, 2016,4, 142-152
  • Open access: Creative Commons BY license
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    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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