2021
DOI: 10.5802/crchim.86
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ORR activity of metalated phenanthroline-strapped porphyrin adsorbed on carbon nanotubes

Abstract: Developing efficient noble metal-free systems for electrocatalysis and the reduction of oxygen (ORR) is crucial for hydrogen economy. Bioinspired hybrids combining iron or copper/iron porphyrins with multiwalled carbon nanotubes were tested for ORR using a rotating ring-disk electrode at pH 13 to 8. The porphyrin-nanotube hybrids exhibited better electrocatalytic properties than their constituents alone due to the electrical network formed by the nanotubes, and they reduced oxygen via a four-electron pathway t… Show more

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