Magnetic resonance and magnetic susceptibility study of vanadium oxide-decylamine nanotubes

Alexander M. Panich; Israel Felner; Alexander I. Shames; Cheol Eui Lee

doi:10.1088/2053-1591/3/11/115019

Magnetic resonance and magnetic susceptibility study of vanadium oxide-decylamine nanotubes

Alexander M. Panich, Israel Felner, Alexander I. Shames, Cheol Eui Lee

Department of Physics

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

Abstract

We report on magnetic susceptibility, 51V NMR and EPR study of multiwall vanadium oxide-decylamine nanotubes. Our measurements reveal the presence of a diamagnetic V⁵⁺ and two paramagnetic V⁴⁺ ions, respectively. NMR spectra and magnetic susceptibility data estimate the V⁴⁺ ions as ∼31%-35% of the entire vanadium ions content. EPR evidences that the paramagnetic V4+ subsystem consists of ∼10% of individual ions (hyperfine structured polycrystalline pattern) and ∼90% of exchange coupled entities(Lorentzian line).

Original language	English
Article number	115019
Journal	Materials Research Express
Volume	3
Issue number	11
DOIs	https://doi.org/10.1088/2053-1591/3/11/115019
Publication status	Published - 2016 Nov 1

Keywords

EPR
Magnetic susceptibility
NMR
Vanadium oxide nanotubes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Polymers and Plastics
Metals and Alloys

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10.1088/2053-1591/3/11/115019

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title = "Magnetic resonance and magnetic susceptibility study of vanadium oxide-decylamine nanotubes",

abstract = "We report on magnetic susceptibility, 51V NMR and EPR study of multiwall vanadium oxide-decylamine nanotubes. Our measurements reveal the presence of a diamagnetic V5+ and two paramagnetic V4+ ions, respectively. NMR spectra and magnetic susceptibility data estimate the V4+ ions as ∼31%-35% of the entire vanadium ions content. EPR evidences that the paramagnetic V4+ subsystem consists of ∼10% of individual ions (hyperfine structured polycrystalline pattern) and ∼90% of exchange coupled entities(Lorentzian line).",

keywords = "EPR, Magnetic susceptibility, NMR, Vanadium oxide nanotubes",

author = "Panich, {Alexander M.} and Israel Felner and Shames, {Alexander I.} and Lee, {Cheol Eui}",

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doi = "10.1088/2053-1591/3/11/115019",

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T1 - Magnetic resonance and magnetic susceptibility study of vanadium oxide-decylamine nanotubes

AU - Panich, Alexander M.

AU - Felner, Israel

AU - Shames, Alexander I.

AU - Lee, Cheol Eui

PY - 2016/11/1

Y1 - 2016/11/1

N2 - We report on magnetic susceptibility, 51V NMR and EPR study of multiwall vanadium oxide-decylamine nanotubes. Our measurements reveal the presence of a diamagnetic V5+ and two paramagnetic V4+ ions, respectively. NMR spectra and magnetic susceptibility data estimate the V4+ ions as ∼31%-35% of the entire vanadium ions content. EPR evidences that the paramagnetic V4+ subsystem consists of ∼10% of individual ions (hyperfine structured polycrystalline pattern) and ∼90% of exchange coupled entities(Lorentzian line).

AB - We report on magnetic susceptibility, 51V NMR and EPR study of multiwall vanadium oxide-decylamine nanotubes. Our measurements reveal the presence of a diamagnetic V5+ and two paramagnetic V4+ ions, respectively. NMR spectra and magnetic susceptibility data estimate the V4+ ions as ∼31%-35% of the entire vanadium ions content. EPR evidences that the paramagnetic V4+ subsystem consists of ∼10% of individual ions (hyperfine structured polycrystalline pattern) and ∼90% of exchange coupled entities(Lorentzian line).

KW - EPR

KW - Magnetic susceptibility

KW - NMR

KW - Vanadium oxide nanotubes

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DO - 10.1088/2053-1591/3/11/115019

M3 - Article

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SN - 2053-1591

VL - 3

JO - Materials Research Express

JF - Materials Research Express

IS - 11

M1 - 115019

ER -

Magnetic resonance and magnetic susceptibility study of vanadium oxide-decylamine nanotubes

Abstract

Keywords

ASJC Scopus subject areas

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