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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU145613" target="_blank" >RIV/00216305:26620/23:PU145613 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21230/23:00360085

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s12274-022-4672-0" target="_blank" >https://link.springer.com/article/10.1007/s12274-022-4672-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s12274-022-4672-0" target="_blank" >10.1007/s12274-022-4672-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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 H-2 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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 H-2 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

—

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nano Research

ISSN

1998-0124

e-ISSN

1998-0000

Svazek periodika

16

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CN - Čínská lidová republika

Počet stran výsledku

9

Strana od-do

1473-1481

Kód UT WoS článku

000829148800005

EID výsledku v databázi Scopus

2-s2.0-85135005414