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

Number of Access:859（2025-07-31 17:05 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/100450

Link to primary information 

File Format Terms of use Size Views Date.Available Description information
JMaterSci_60_3275 pdf None 3.14 MB 18 2025.03.03  
Creative Commons : Attribution

Item Information

Output File Export EndNote Basic Export Mendeley

Title
Effect of particle size on the oxygen reduction reaction activity of carbon‐supported niobium-oxide‐based nanoparticle catalysts
Creator
ORCID
0009-0006-1974-2719 0009-0006-1974-2719
researchmap permalink
NaokiShinyoshi NaokiShinyoshi
Scopus Author ID
58623934100 58623934100
CreatorName
Shinyoshi, Naoki
NRID
1000090432517 1000090432517
ORCID
0000-0002-3770-5667 0000-0002-3770-5667
researchmap permalink
SatoshiSeino SatoshiSeino
Scopus Author ID
7102254334 7102254334
CreatorName
Seino, Satoshi
CreatorName
Hasegawa, Yuta
NRID
1000010755440 1000010755440
ORCID
0000-0002-4742-8085 0000-0002-4742-8085
researchmap permalink
yutauetake yutauetake
Scopus Author ID
56417952700 56417952700
CreatorName
Uetake, Yuta
CreatorName
Nagai, Takaaki
CreatorName
Monden, Ryuji
NRID
1000030754006 1000030754006
CreatorName
Ishihara, Akimitsu
NRID
1000070273589 1000070273589
researchmap permalink
read0051696 read0051696
Scopus Author ID
55507554600 55507554600
CreatorName
Nakagawa, Takashi
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.
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.
Publisher
Springer Science and Business Media LLC
Source Title
Journal of Materials Science
Volume (Issue)
60
Page
3275-3285
Date of Issued
2025-02-03
Language
English
Handle URL
https://hdl.handle.net/11094/100450
PISSN
00222461
eISSN
15734803
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1007/s10853-025-10632-z
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article