Effect of particle size on the oxygen reduction reaction activity of carbon‐supported niobium-oxide‐based nanoparticle catalysts

Shinyoshi, Naoki; Seino, Satoshi; Hasegawa, Yuta; Uetake, Yuta; Nagai, Takaaki; Monden, Ryuji; Ishihara, Akimitsu; Nakagawa, Takashi

doi:https://doi.org/10.1007/s10853-025-10632-z

Effect of particle size on the oxygen reduction reaction activity of carbon‐supported niobium-oxide‐based nanoparticle catalysts

Shinyoshi, Naoki; Seino, Satoshi; Hasegawa, Yuta et al.

Journal of Materials Science, 2025, 60, 3275-3285

アクセス数:833件（2025-07-19 11:33 集計）

固定URL: https://hdl.handle.net/11094/100450

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タイトル	Effect of particle size on the oxygen reduction reaction activity of carbon‐supported niobium-oxide‐based nanoparticle catalysts
著者	ORCID 0009-0006-1974-2719 0009-0006-1974-2719 researchmap permalink NaokiShinyoshi NaokiShinyoshi Scopus Author ID 58623934100 58623934100 著者名 Shinyoshi, Naoki
	NRID 1000090432517 1000090432517 ORCID 0000-0002-3770-5667 0000-0002-3770-5667 researchmap permalink SatoshiSeino SatoshiSeino Scopus Author ID 7102254334 7102254334 著者名 Seino, Satoshi
	著者名 Hasegawa, Yuta
	NRID 1000010755440 1000010755440 ORCID 0000-0002-4742-8085 0000-0002-4742-8085 researchmap permalink yutauetake yutauetake Scopus Author ID 56417952700 56417952700 著者名 Uetake, Yuta
	著者名 Nagai, Takaaki
	著者名 Monden, Ryuji
	NRID 1000030754006 1000030754006 著者名 Ishihara, Akimitsu
	NRID 1000070273589 1000070273589 researchmap permalink read0051696 read0051696 Scopus Author ID 55507554600 55507554600 著者名 Nakagawa, Takashi
内容	The version of record of this article, first published in Journal of Materials Science, is available online at Publisher’s website: https://doi.org/10.1007/s10853-025-10632-z.
抄録	In this study, niobium oxynitride nanoparticles were examined to determine the effect of particle size on oxygen reduction reaction (ORR) activity. To this end, catalyst precursors with niobium oxides dispersed on carbon supports were prepared using the irradiation or impregnation method. Polyacrylonitrile was added to each precursor, followed by heat treatment under an ammonia‐containing atmosphere to synthesize niobium oxynitride nanoparticles. The structures of the prepared catalysts were analyzed using transmission electron microscopy, X-ray diffraction, and X-ray absorption spectroscopy. The results indicated that two catalysts with the same crystal phase but different particle sizes were obtained. Comparing their ORR activities revealed that the effect of particle size on ORR activity was limited. Thus, it was inferred that controlling the microelectron conduction paths can help maximize the benefits of particle size reduction. In addition, niobium oxynitride nanoparticles with different structures were obtained by varying the heat-treatment temperatures, and the ORR activity of each prepared catalyst was evaluated. These findings suggest that forming graphitized carbon residues with high electrical conductivity and controlling nitrogen-doping in the oxide nanoparticles are crucial steps for enhancing the ORR activity of oxide-based catalysts. These findings offer valuable insights for developing material design strategies to improve oxide-based catalyst performance.
出版者	Springer Science and Business Media LLC
収録物名	Journal of Materials Science
巻(号)	60
ページ	3275-3285
刊行年月	2025-02-03
言語	英語
ハンドルURL	https://hdl.handle.net/11094/100450
PISSN	00222461
eISSN	15734803
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1007/s10853-025-10632-z
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCTERMS.bibliographicCitation	Journal of Materials Science. 2025, 60, p. 3275-3285
DC.title	Effect of particle size on the oxygen reduction reaction activity of carbon‐supported niobium-oxide‐based nanoparticle catalysts
DC.creator	Shinyoshi, Naoki
	Seino, Satoshi
	Hasegawa, Yuta
	Uetake, Yuta
	Nagai, Takaaki
	Monden, Ryuji
	Ishihara, Akimitsu
	Nakagawa, Takashi
DC.publisher	Springer Science and Business Media LLC
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-02-03
DC.identifier	https://doi.org/10.1007/s10853-025-10632-z
DC.description	The version of record of this article, first published in Journal of Materials Science, is available online at Publisher’s website: https://doi.org/10.1007/s10853-025-10632-z.
DCTERMS.abstract	In this study, niobium oxynitride nanoparticles were examined to determine the effect of particle size on oxygen reduction reaction (ORR) activity. To this end, catalyst precursors with niobium oxides dispersed on carbon supports were prepared using the irradiation or impregnation method. Polyacrylonitrile was added to each precursor, followed by heat treatment under an ammonia‐containing atmosphere to synthesize niobium oxynitride nanoparticles. The structures of the prepared catalysts were analyzed using transmission electron microscopy, X-ray diffraction, and X-ray absorption spectroscopy. The results indicated that two catalysts with the same crystal phase but different particle sizes were obtained. Comparing their ORR activities revealed that the effect of particle size on ORR activity was limited. Thus, it was inferred that controlling the microelectron conduction paths can help maximize the benefits of particle size reduction. In addition, niobium oxynitride nanoparticles with different structures were obtained by varying the heat-treatment temperatures, and the ORR activity of each prepared catalyst was evaluated. These findings suggest that forming graphitized carbon residues with high electrical conductivity and controlling nitrogen-doping in the oxide nanoparticles are crucial steps for enhancing the ORR activity of oxide-based catalysts. These findings offer valuable insights for developing material design strategies to improve oxide-based catalyst performance.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	100450
citation_title	Effect of particle size on the oxygen reduction reaction activity of carbon‐supported niobium-oxide‐based nanoparticle catalysts
citation_author	Shinyoshi, Naoki
	Seino, Satoshi
	Hasegawa, Yuta
	Uetake, Yuta
	Nagai, Takaaki
	Monden, Ryuji
	Ishihara, Akimitsu
	Nakagawa, Takashi
citation_publisher	Springer Science and Business Media LLC
citation_language	英語
citation_date	2025-02-03
citation_journal_title	Journal of Materials Science
citation_volume	60
citation_firstpage	3275
citation_lastpage	3285
citation_doi	https://doi.org/10.1007/s10853-025-10632-z
citation_public_url	https://hdl.handle.net/11094/100450

Effect of particle size on the oxygen reduction reaction activity of carbon‐supported niobium-oxide‐based nanoparticle catalysts

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