Iron Encapsulated within Pod‐like Carbon Nanotubes for Oxygen Reduction Reaction

Chainmail for catalysts: A catalyst with iron nanoparticles confined inside pea-pod-like carbon nanotubes (see picture) exhibits a high activity and remarkable stability as a cathode catalyst in polymer electrolyte membrane fuel cells (PEMFC), even in presence of SO2. The approach offers a new route to electro- and heterogeneous catalysts for harsh conditions. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please…