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

Hiroya Abe; Kohei Nozaki; Shu Sokabe; Akichika Kumatani; Tomokazu Matsue; Hiroshi Yabu

doi:10.1021/acsomega.0c02182

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

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

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	18391-18396
Number of pages	6
Journal	ACS Omega
Volume	5
Issue number	29
DOIs	https://doi.org/10.1021/acsomega.0c02182
Publication status	Published - 2020 Jul 28

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10.1021/acsomega.0c02182

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

abstract = "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.",

author = "Hiroya Abe and Kohei Nozaki and Shu Sokabe and Akichika Kumatani and Tomokazu Matsue and Hiroshi Yabu",

note = "Funding Information: H.A. thanks KAKENHI, JSPS (no. 19K15598), Research Institutes Ensemble Grant for young researchers and FRIS Creative Interdisciplinary Collaboration Program from Tohoku University for financial support. H.Y. thanks KAKENHI, JSPS (nos. 18H05482, 18H05322, 19KK0357, and 20H04625) for financial support. H.A., A.K., and H.Y. thank to AIMR Fusion research from Tohoku University for financial support. Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = jul,

day = "28",

doi = "10.1021/acsomega.0c02182",

language = "English",

volume = "5",

pages = "18391--18396",

journal = "ACS Omega",

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T1 - S/N Co-Doped Hollow Carbon Particles for Oxygen Reduction Electrocatalysts Prepared by Spontaneous Polymerization at Oil-Water Interfaces

AU - Abe, Hiroya

AU - Nozaki, Kohei

AU - Sokabe, Shu

AU - Kumatani, Akichika

AU - Matsue, Tomokazu

AU - Yabu, Hiroshi

N1 - Funding Information: H.A. thanks KAKENHI, JSPS (no. 19K15598), Research Institutes Ensemble Grant for young researchers and FRIS Creative Interdisciplinary Collaboration Program from Tohoku University for financial support. H.Y. thanks KAKENHI, JSPS (nos. 18H05482, 18H05322, 19KK0357, and 20H04625) for financial support. H.A., A.K., and H.Y. thank to AIMR Fusion research from Tohoku University for financial support. Publisher Copyright: Copyright © 2020 American Chemical Society.

PY - 2020/7/28

Y1 - 2020/7/28

N2 - 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.

AB - 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.

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DO - 10.1021/acsomega.0c02182

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JO - ACS Omega

JF - ACS Omega

IS - 29

ER -

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

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