S/N Co-Doped Hollow Carbon Particles for Oxygen Reduction Electrocatalysts Prepared by Spontaneous Polymerization at Oil-Water Interfaces

Copyright © 2020 American Chemical Society..

We herein report that sulfur and nitrogen co-doped hollow spherical carbon particles can be applied to oxygen reduction reaction (ORR) electrocatalysts prepared by calcination of polydopamine (PDA) hollow particles. The hollow structure of PDA was formed by auto-oxidative interfacial polymerization of dopamine at the oil and water interface of emulsion microdroplets. The PDA was used as the nitrogen source as well as a platform for sulfur-doping. The obtained sulfur and nitrogen co-doped hollow particles showed a higher catalytic activity than that of nonsulfur-doped particles and nonhollow particles. The high ORR activity of the calcined S-doped PDA hollow particles could be attributed to the combination of nitrogen and sulfur active sites and the large surface areas owing to a hollow spherical structure.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:5

Enthalten in:

ACS omega - 5(2020), 29 vom: 28. Juli, Seite 18391-18396

Sprache:

Englisch

Beteiligte Personen:

Abe, Hiroya [VerfasserIn]
Nozaki, Kohei [VerfasserIn]
Sokabe, Shu [VerfasserIn]
Kumatani, Akichika [VerfasserIn]
Matsue, Tomokazu [VerfasserIn]
Yabu, Hiroshi [VerfasserIn]

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Date Revised 28.09.2020

published: Electronic-eCollection

Citation Status PubMed-not-MEDLINE

doi:

10.1021/acsomega.0c02182

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM313185727