Structure, magnetic and adsorption properties of novel FePt/h-BN heteromaterials

Anton S. Konopatsky; Vladislava V. Kalinina; Alena S. Savchenko; Denis V. Leybo; Ekaterina V. Sukhanova; Viktor S. Baidyshev; Zakhar I. Popov; Andrey V. Bondarev; Josef Polčák; Dmitry V. Shtansky

doi:10.1007/s12274-022-4672-0

Structure, magnetic and adsorption properties of novel FePt/h-BN heteromaterials

Anton S. Konopatsky, Vladislava V. Kalinina, Alena S. Savchenko, Denis V. Leybo, Ekaterina V. Sukhanova, Viktor S. Baidyshev, Zakhar I. Popov, Andrey V. Bondarev, Josef Polčák, Dmitry V. Shtansky

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

Abstract

Nanomaterials with high specific surface area and high absorption capacity are attracting increased interest aimed at imparting the desired magnetic properties. This work is devoted to the study of the effect of heat treatment in a hydrogen atmosphere on the microstructure, adsorption and magnetic properties of heterogeneous FePt/h-BN nanomaterials. Obtained via the polyol process, FePt nanoparticles (NPs) had a size < 2 nm and were uniformly distributed over the surface of hexagonal boron nitride (h-BN) nanosheets. The temperature-activated fcc→fct phase transformation in ultrafine FePt NPs has been well documented. FePt NPs act as active centers dissociating H₂ molecules and transfer adsorbed hydrogen atoms to the h-BN. Density functional theory (DFT) calculations also indicate that the h-BN substrate can absorb hydrogen adsorbed on the FePt NPs. This hydrogen circulation in the FePt/h-BN system promoted the fcc→fct phase transformation and allowed to control the magnetic properties. FePt/h-BN nanomaterials also exhibited a high adsorption capacity with respect to various organic dyes.[Figure not available: see fulltext.]

Original language	English
Pages (from-to)	1473-1481
Number of pages	9
Journal	Nano Research
Volume	16
Issue number	1
DOIs	https://doi.org/10.1007/s12274-022-4672-0
Publication status	Published - Jan 2023
Externally published	Yes

Keywords

adsorption
FePt/h-BN nanomaterials
magnetic properties
phase transformations
polyol synthesis

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10.1007/s12274-022-4672-0

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title = "Structure, magnetic and adsorption properties of novel FePt/h-BN heteromaterials",

abstract = "Nanomaterials with high specific surface area and high absorption capacity are attracting increased interest aimed at imparting the desired magnetic properties. This work is devoted to the study of the effect of heat treatment in a hydrogen atmosphere on the microstructure, adsorption and magnetic properties of heterogeneous FePt/h-BN nanomaterials. Obtained via the polyol process, FePt nanoparticles (NPs) had a size < 2 nm and were uniformly distributed over the surface of hexagonal boron nitride (h-BN) nanosheets. The temperature-activated fcc→fct phase transformation in ultrafine FePt NPs has been well documented. FePt NPs act as active centers dissociating H2 molecules and transfer adsorbed hydrogen atoms to the h-BN. Density functional theory (DFT) calculations also indicate that the h-BN substrate can absorb hydrogen adsorbed on the FePt NPs. This hydrogen circulation in the FePt/h-BN system promoted the fcc→fct phase transformation and allowed to control the magnetic properties. FePt/h-BN nanomaterials also exhibited a high adsorption capacity with respect to various organic dyes.[Figure not available: see fulltext.]",

keywords = "adsorption, FePt/h-BN nanomaterials, magnetic properties, phase transformations, polyol synthesis",

author = "Konopatsky, {Anton S.} and Kalinina, {Vladislava V.} and Savchenko, {Alena S.} and Leybo, {Denis V.} and Sukhanova, {Ekaterina V.} and Baidyshev, {Viktor S.} and Popov, {Zakhar I.} and Bondarev, {Andrey V.} and Josef Pol{\v c}{\'a}k and Shtansky, {Dmitry V.}",

note = "Publisher Copyright: {\textcopyright} 2022, Tsinghua University Press.",

year = "2023",

month = jan,

doi = "10.1007/s12274-022-4672-0",

language = "English",

volume = "16",

pages = "1473--1481",

journal = "Nano Research",

issn = "1998-0124",

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TY - JOUR

T1 - Structure, magnetic and adsorption properties of novel FePt/h-BN heteromaterials

AU - Konopatsky, Anton S.

AU - Kalinina, Vladislava V.

AU - Savchenko, Alena S.

AU - Leybo, Denis V.

AU - Sukhanova, Ekaterina V.

AU - Baidyshev, Viktor S.

AU - Popov, Zakhar I.

AU - Bondarev, Andrey V.

AU - Polčák, Josef

AU - Shtansky, Dmitry V.

PY - 2023/1

Y1 - 2023/1

N2 - Nanomaterials with high specific surface area and high absorption capacity are attracting increased interest aimed at imparting the desired magnetic properties. This work is devoted to the study of the effect of heat treatment in a hydrogen atmosphere on the microstructure, adsorption and magnetic properties of heterogeneous FePt/h-BN nanomaterials. Obtained via the polyol process, FePt nanoparticles (NPs) had a size < 2 nm and were uniformly distributed over the surface of hexagonal boron nitride (h-BN) nanosheets. The temperature-activated fcc→fct phase transformation in ultrafine FePt NPs has been well documented. FePt NPs act as active centers dissociating H2 molecules and transfer adsorbed hydrogen atoms to the h-BN. Density functional theory (DFT) calculations also indicate that the h-BN substrate can absorb hydrogen adsorbed on the FePt NPs. This hydrogen circulation in the FePt/h-BN system promoted the fcc→fct phase transformation and allowed to control the magnetic properties. FePt/h-BN nanomaterials also exhibited a high adsorption capacity with respect to various organic dyes.[Figure not available: see fulltext.]

AB - Nanomaterials with high specific surface area and high absorption capacity are attracting increased interest aimed at imparting the desired magnetic properties. This work is devoted to the study of the effect of heat treatment in a hydrogen atmosphere on the microstructure, adsorption and magnetic properties of heterogeneous FePt/h-BN nanomaterials. Obtained via the polyol process, FePt nanoparticles (NPs) had a size < 2 nm and were uniformly distributed over the surface of hexagonal boron nitride (h-BN) nanosheets. The temperature-activated fcc→fct phase transformation in ultrafine FePt NPs has been well documented. FePt NPs act as active centers dissociating H2 molecules and transfer adsorbed hydrogen atoms to the h-BN. Density functional theory (DFT) calculations also indicate that the h-BN substrate can absorb hydrogen adsorbed on the FePt NPs. This hydrogen circulation in the FePt/h-BN system promoted the fcc→fct phase transformation and allowed to control the magnetic properties. FePt/h-BN nanomaterials also exhibited a high adsorption capacity with respect to various organic dyes.[Figure not available: see fulltext.]

KW - adsorption

KW - FePt/h-BN nanomaterials

KW - magnetic properties

KW - phase transformations

KW - polyol synthesis

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DO - 10.1007/s12274-022-4672-0

M3 - Article

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JF - Nano Research

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ER -

Structure, magnetic and adsorption properties of novel FePt/h-BN heteromaterials

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Keywords

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