Cu, Fe, N‐doped Carbon Nanotubes Prepared through Silica Coating for Selective Oxygen Reduction to Water in Acidic Media

Cu, Fe, N‐doped Carbon Nanotubes Prepared through Silica Coating for Selective Oxygen Reduction to Water in Acidic Media

We report Cu, Fe, N‐doped carbon nanotubes, (Cu,Fe)−N−CNT, as electrocatalysts for the oxygen reduction reaction (ORR) in acidic media. (Cu,Fe)−N−CNT was prepared using a silica coating method in pyrolysis to minimize the formation of carbon‐coated metal oxide or carbide nanoparticles, which are kno...

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Veröffentlicht in:ChemCatChem 2024-08, Vol.16 (15), p.n/a
Hauptverfasser: Kato, Masaru, Abe, Daiki, Xie, Siqi, Sato, Shun, Fujibayashi, Natsuki, Matsumoto, Koki, Onoda, Akira, Hayashi, Takashi, Mitsui, Takaya, Fujiwara, Kosuke, Yamamoto, Takashi, Einaga, Yasuaki, Tadgell, Colin A., Kato, Yuta, Asakura, Kiyotaka, Yagi, Ichizo
Format: Artikel
Sprache:eng
Schlagworte:
Absorption spectroscopy
Acidic oxides
Bimetals
bio-inspired electrocatalysts
Carbon
Carbon nanotubes
Chemical reduction
Copper
dual atom catalysts
Electrocatalysts
heterometallic cooperativity
Hydrogen peroxide
Iron
kinetic analysis
Metal oxides
oxygen reduction reaction
Oxygen reduction reactions
Pyrolysis
Silicon dioxide
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Zusammenfassung:We report Cu, Fe, N‐doped carbon nanotubes, (Cu,Fe)−N−CNT, as electrocatalysts for the oxygen reduction reaction (ORR) in acidic media. (Cu,Fe)−N−CNT was prepared using a silica coating method in pyrolysis to minimize the formation of carbon‐coated metal oxide or carbide nanoparticles, which are known to be inactive for the H2O2 reduction. (Cu,Fe)−N−CNT shows a turnover frequency of 0.66 e− site−1 s−1 at +0.8 V vs. RHE and H2O2 yields of
ISSN:1867-3880
1867-3899
DOI:10.1002/cctc.202400017