Evidence of band gap features in Fe3O4 Bbmm filled carbon nano-onions

Filippo S. Boi; Sameera Ivaturi; Ayoub Taallah; Shanling Wang; Jiqiu Wen

doi:10.1088/2053-1591/ab903d

Evidence of band gap features in Fe₃O₄ Bbmm filled carbon nano-onions

Filippo S. Boi^*, Sameera Ivaturi, Ayoub Taallah, Shanling Wang, Jiqiu Wen

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

A key challenge in the fabrication of ferromagnetically filled multilayer fullerenes (carbon nano-onions, CNOs) is the manipulation of the structure, composition and electronic band characteristics of both the carbon layers and encapsulated ferromagnetic material. Interestingly, a recent work has demonstrated that the addition of small quantities of water during the chemical vapour synthesis of Fe₃C filled CNOs can allow the local manipulation of the Fe₃C crystal-structure and induce the nucleation of a novel high pressure Bbmm Fe₃O₄ crystal-phase. In this report we propose an advanced study of such structural transition. Particularly, we investigate the morphological, optical (band-gap) characteristics and magnetic properties of the as produced CNO materials by using transmission electron microscopy, vibrating sample magnetometry, x-ray photoelectron spectroscopy and UV-vis spectroscopy.

Original language	English
Article number	055603
Journal	Materials Research Express
Volume	7
Issue number	5
DOIs	https://doi.org/10.1088/2053-1591/ab903d
Publication status	Published - May 2020
Externally published	Yes

Keywords

Bbmm
carbon onions
iron oxide
magnetism

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10.1088/2053-1591/ab903d

Cite this

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title = "Evidence of band gap features in Fe3O4 Bbmm filled carbon nano-onions",

abstract = "A key challenge in the fabrication of ferromagnetically filled multilayer fullerenes (carbon nano-onions, CNOs) is the manipulation of the structure, composition and electronic band characteristics of both the carbon layers and encapsulated ferromagnetic material. Interestingly, a recent work has demonstrated that the addition of small quantities of water during the chemical vapour synthesis of Fe3C filled CNOs can allow the local manipulation of the Fe3C crystal-structure and induce the nucleation of a novel high pressure Bbmm Fe3O4 crystal-phase. In this report we propose an advanced study of such structural transition. Particularly, we investigate the morphological, optical (band-gap) characteristics and magnetic properties of the as produced CNO materials by using transmission electron microscopy, vibrating sample magnetometry, x-ray photoelectron spectroscopy and UV-vis spectroscopy.",

keywords = "Bbmm, carbon onions, iron oxide, magnetism",

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T1 - Evidence of band gap features in Fe3O4 Bbmm filled carbon nano-onions

AU - Boi, Filippo S.

AU - Ivaturi, Sameera

AU - Taallah, Ayoub

AU - Wang, Shanling

AU - Wen, Jiqiu

PY - 2020/5

Y1 - 2020/5

N2 - A key challenge in the fabrication of ferromagnetically filled multilayer fullerenes (carbon nano-onions, CNOs) is the manipulation of the structure, composition and electronic band characteristics of both the carbon layers and encapsulated ferromagnetic material. Interestingly, a recent work has demonstrated that the addition of small quantities of water during the chemical vapour synthesis of Fe3C filled CNOs can allow the local manipulation of the Fe3C crystal-structure and induce the nucleation of a novel high pressure Bbmm Fe3O4 crystal-phase. In this report we propose an advanced study of such structural transition. Particularly, we investigate the morphological, optical (band-gap) characteristics and magnetic properties of the as produced CNO materials by using transmission electron microscopy, vibrating sample magnetometry, x-ray photoelectron spectroscopy and UV-vis spectroscopy.

AB - A key challenge in the fabrication of ferromagnetically filled multilayer fullerenes (carbon nano-onions, CNOs) is the manipulation of the structure, composition and electronic band characteristics of both the carbon layers and encapsulated ferromagnetic material. Interestingly, a recent work has demonstrated that the addition of small quantities of water during the chemical vapour synthesis of Fe3C filled CNOs can allow the local manipulation of the Fe3C crystal-structure and induce the nucleation of a novel high pressure Bbmm Fe3O4 crystal-phase. In this report we propose an advanced study of such structural transition. Particularly, we investigate the morphological, optical (band-gap) characteristics and magnetic properties of the as produced CNO materials by using transmission electron microscopy, vibrating sample magnetometry, x-ray photoelectron spectroscopy and UV-vis spectroscopy.

KW - Bbmm

KW - carbon onions

KW - iron oxide

KW - magnetism

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DO - 10.1088/2053-1591/ab903d

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JO - Materials Research Express

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Evidence of band gap features in Fe₃O₄ Bbmm filled carbon nano-onions

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Keywords

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