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A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition

Ultrasmall particles, different from the larger size nanoparticles, have recently attracted significant attention in the scientific community in nanotechnology for catalytic, electronic and optical applications; however, their magnetic properties remain unexplored due to the difficult structural ana...

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Autores principales: Ida, Yumi, Okazawa, Atsushi, Sonobe, Kazutaka, Muramatsu, Hisanori, Kambe, Tetsuya, Imaoka, Takane, Chun, Wang-Jae, Tanabe, Makoto, Yamamoto, Kimihisa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057782/
https://www.ncbi.nlm.nih.gov/pubmed/35516573
http://dx.doi.org/10.1039/d0ra07443h
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author Ida, Yumi
Okazawa, Atsushi
Sonobe, Kazutaka
Muramatsu, Hisanori
Kambe, Tetsuya
Imaoka, Takane
Chun, Wang-Jae
Tanabe, Makoto
Yamamoto, Kimihisa
author_facet Ida, Yumi
Okazawa, Atsushi
Sonobe, Kazutaka
Muramatsu, Hisanori
Kambe, Tetsuya
Imaoka, Takane
Chun, Wang-Jae
Tanabe, Makoto
Yamamoto, Kimihisa
author_sort Ida, Yumi
collection PubMed
description Ultrasmall particles, different from the larger size nanoparticles, have recently attracted significant attention in the scientific community in nanotechnology for catalytic, electronic and optical applications; however, their magnetic properties remain unexplored due to the difficult structural analysis. A challenging issue is to develop a preparation method for iron oxide particles (IOPs) with fine size control, and to determine the dependence of magnetic properties on the morphology and crystallinity of the magnetic particles. However, synthetic approaches to obtain IOPs, regarded as one of the new fields of magnetic nanoparticles, have been significantly limited. This article reported a developed synthetic method to prepare IOPs on carbon supports using pulsed arc plasma deposition (APD) in flowing oxygen gas, which clarified the finely-controlled formation of IOPs on graphene nanosheets. Structural characterization of the IOPs revealed the formation of crystalline γ-Fe(2)O(3) ultrasmall particles with oxygen deficiency. The pulsed APD method for IOPs is the first simple and convenient technique to not only prevent significant aggregation and contamination by organic compounds and avoid the need for thermal pretreatment, but also provide uniform crystalline nano-order particles.
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spelling pubmed-90577822022-05-04 A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition Ida, Yumi Okazawa, Atsushi Sonobe, Kazutaka Muramatsu, Hisanori Kambe, Tetsuya Imaoka, Takane Chun, Wang-Jae Tanabe, Makoto Yamamoto, Kimihisa RSC Adv Chemistry Ultrasmall particles, different from the larger size nanoparticles, have recently attracted significant attention in the scientific community in nanotechnology for catalytic, electronic and optical applications; however, their magnetic properties remain unexplored due to the difficult structural analysis. A challenging issue is to develop a preparation method for iron oxide particles (IOPs) with fine size control, and to determine the dependence of magnetic properties on the morphology and crystallinity of the magnetic particles. However, synthetic approaches to obtain IOPs, regarded as one of the new fields of magnetic nanoparticles, have been significantly limited. This article reported a developed synthetic method to prepare IOPs on carbon supports using pulsed arc plasma deposition (APD) in flowing oxygen gas, which clarified the finely-controlled formation of IOPs on graphene nanosheets. Structural characterization of the IOPs revealed the formation of crystalline γ-Fe(2)O(3) ultrasmall particles with oxygen deficiency. The pulsed APD method for IOPs is the first simple and convenient technique to not only prevent significant aggregation and contamination by organic compounds and avoid the need for thermal pretreatment, but also provide uniform crystalline nano-order particles. The Royal Society of Chemistry 2020-11-14 /pmc/articles/PMC9057782/ /pubmed/35516573 http://dx.doi.org/10.1039/d0ra07443h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Ida, Yumi
Okazawa, Atsushi
Sonobe, Kazutaka
Muramatsu, Hisanori
Kambe, Tetsuya
Imaoka, Takane
Chun, Wang-Jae
Tanabe, Makoto
Yamamoto, Kimihisa
A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition
title A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition
title_full A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition
title_fullStr A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition
title_full_unstemmed A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition
title_short A useful preparation of ultrasmall iron oxide particles by using arc plasma deposition
title_sort useful preparation of ultrasmall iron oxide particles by using arc plasma deposition
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9057782/
https://www.ncbi.nlm.nih.gov/pubmed/35516573
http://dx.doi.org/10.1039/d0ra07443h
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