Comparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods

Synthesis of Ni/C nanostructured composites based on a natural raw material, i.e., wheat straw, is carried out in this work. The synthesis is performed by one- and two-stage methods using NiCl<sub>2</sub> as the activating agent. The X-ray diffraction and EDS analyses reveal the presence...

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Autores principales:	Ihor Bordun, Krzysztof Chwastek, Dariusz Całus, Piotr Chabecki, Fedir Ivashchyshyn, Zenoviy Kohut, Anatoliy Borysiuk, Yuriy Kulyk
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	nanostructured composite nickel chloride porous structure adsorption properties magnetic hysteresis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/edd0725e3d1245dd8baddb8ea3a3e816
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spelling	oai:doaj.org-article:edd0725e3d1245dd8baddb8ea3a3e8162021-11-11T15:06:48ZComparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods10.3390/app1121100312076-3417https://doaj.org/article/edd0725e3d1245dd8baddb8ea3a3e8162021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10031https://doaj.org/toc/2076-3417Synthesis of Ni/C nanostructured composites based on a natural raw material, i.e., wheat straw, is carried out in this work. The synthesis is performed by one- and two-stage methods using NiCl<sub>2</sub> as the activating agent. The X-ray diffraction and EDS analyses reveal the presence of metallic nickel in the structure of the composites, whereas magnetic measurements showed that nickel was contained in the porous carbon matrix in the nanoparticle state. For nanocomposites synthesized by the one-stage method, the largest contribution to the formation of the porous structure might be attributed to pores with radii from 5 to 30 nm; for a nanocomposite synthesized in two stages, the pore distribution function exhibits a narrow isolated peak with a maximum of around 2.6 nm. Based on the obtained magnetic data, the coercive force, specific saturation magnetization and nickel content in nanocomposites are calculated. For the measured values of the coercive force, the average size of magnetic moment carriers is determined to be ~100 nm for the two-stage synthesis nanocomposite and ~100 ÷ 110 nm for the one-stage synthesis nanocomposites. The developed Ni/C nanocomposites might be used as a cheap material for energy storage applications or as magnetically controlled adsorbents.Ihor BordunKrzysztof ChwastekDariusz CałusPiotr ChabeckiFedir IvashchyshynZenoviy KohutAnatoliy BorysiukYuriy KulykMDPI AGarticlenanostructured compositenickel chlorideporous structureadsorption propertiesmagnetic hysteresisTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10031, p 10031 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nanostructured composite nickel chloride porous structure adsorption properties magnetic hysteresis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	nanostructured composite nickel chloride porous structure adsorption properties magnetic hysteresis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Ihor Bordun Krzysztof Chwastek Dariusz Całus Piotr Chabecki Fedir Ivashchyshyn Zenoviy Kohut Anatoliy Borysiuk Yuriy Kulyk Comparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods
description	Synthesis of Ni/C nanostructured composites based on a natural raw material, i.e., wheat straw, is carried out in this work. The synthesis is performed by one- and two-stage methods using NiCl<sub>2</sub> as the activating agent. The X-ray diffraction and EDS analyses reveal the presence of metallic nickel in the structure of the composites, whereas magnetic measurements showed that nickel was contained in the porous carbon matrix in the nanoparticle state. For nanocomposites synthesized by the one-stage method, the largest contribution to the formation of the porous structure might be attributed to pores with radii from 5 to 30 nm; for a nanocomposite synthesized in two stages, the pore distribution function exhibits a narrow isolated peak with a maximum of around 2.6 nm. Based on the obtained magnetic data, the coercive force, specific saturation magnetization and nickel content in nanocomposites are calculated. For the measured values of the coercive force, the average size of magnetic moment carriers is determined to be ~100 nm for the two-stage synthesis nanocomposite and ~100 ÷ 110 nm for the one-stage synthesis nanocomposites. The developed Ni/C nanocomposites might be used as a cheap material for energy storage applications or as magnetically controlled adsorbents.
format	article
author	Ihor Bordun Krzysztof Chwastek Dariusz Całus Piotr Chabecki Fedir Ivashchyshyn Zenoviy Kohut Anatoliy Borysiuk Yuriy Kulyk
author_facet	Ihor Bordun Krzysztof Chwastek Dariusz Całus Piotr Chabecki Fedir Ivashchyshyn Zenoviy Kohut Anatoliy Borysiuk Yuriy Kulyk
author_sort	Ihor Bordun
title	Comparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods
title_short	Comparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods
title_full	Comparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods
title_fullStr	Comparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods
title_full_unstemmed	Comparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods
title_sort	comparison of structure and magnetic properties of ni/c composites synthesized from wheat straw by different methods
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/edd0725e3d1245dd8baddb8ea3a3e816
work_keys_str_mv	AT ihorbordun comparisonofstructureandmagneticpropertiesofniccompositessynthesizedfromwheatstrawbydifferentmethods AT krzysztofchwastek comparisonofstructureandmagneticpropertiesofniccompositessynthesizedfromwheatstrawbydifferentmethods AT dariuszcałus comparisonofstructureandmagneticpropertiesofniccompositessynthesizedfromwheatstrawbydifferentmethods AT piotrchabecki comparisonofstructureandmagneticpropertiesofniccompositessynthesizedfromwheatstrawbydifferentmethods AT fedirivashchyshyn comparisonofstructureandmagneticpropertiesofniccompositessynthesizedfromwheatstrawbydifferentmethods AT zenoviykohut comparisonofstructureandmagneticpropertiesofniccompositessynthesizedfromwheatstrawbydifferentmethods AT anatoliyborysiuk comparisonofstructureandmagneticpropertiesofniccompositessynthesizedfromwheatstrawbydifferentmethods AT yuriykulyk comparisonofstructureandmagneticpropertiesofniccompositessynthesizedfromwheatstrawbydifferentmethods
_version_	1718437187050012672

Comparison of Structure and Magnetic Properties of Ni/C Composites Synthesized from Wheat Straw by Different Methods

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