Superparamagnetic, High Magnetic α-Fe & α″-Fe(16)N(2) Mixture Prepared from Inverse Suspension-Polymerized Fe(3)O(4)@polyaniline Composite

Oleic acid (OA)-modified Fe(3)O(4) nanoparticles were successfully covered with polyanilines (PANIs) via inverse suspension polymerization in accordance with SEM and TEM micrographs. The obtained nanoparticles were able to develop into a ferrite (α-Fe) and α″-Fe(16)N(2) mixture with a superparamagne...

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Autores principales: Wang, Yen-Zen, Cheng, Yu-Wei, Ho, Lin-Chia, Huang, Wen-Yao, Ho, Ko-Shan, Syu, Yu-Ting
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8309602/
https://www.ncbi.nlm.nih.gov/pubmed/34301136
http://dx.doi.org/10.3390/polym13142380
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author Wang, Yen-Zen
Cheng, Yu-Wei
Ho, Lin-Chia
Huang, Wen-Yao
Ho, Ko-Shan
Syu, Yu-Ting
author_facet Wang, Yen-Zen
Cheng, Yu-Wei
Ho, Lin-Chia
Huang, Wen-Yao
Ho, Ko-Shan
Syu, Yu-Ting
author_sort Wang, Yen-Zen
collection PubMed
description Oleic acid (OA)-modified Fe(3)O(4) nanoparticles were successfully covered with polyanilines (PANIs) via inverse suspension polymerization in accordance with SEM and TEM micrographs. The obtained nanoparticles were able to develop into a ferrite (α-Fe) and α″-Fe(16)N(2) mixture with a superparamagnetic property and high saturated magnetization (SM) of 245 emu g(−1) at 950 °C calcination under the protection of carbonization materials (calcined PANI) and other iron-compounds (α″-Fe(16)N(2)). The SM of the calcined iron-composites slightly decreases to 232 emu g(−1) after staying in the open air for 3 months. The calcined mixture composite can be ground into homogeneous powders without the segregation of the iron and carbon phases in the mortar without significantly losing magnetic activities.
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spelling pubmed-83096022021-07-25 Superparamagnetic, High Magnetic α-Fe & α″-Fe(16)N(2) Mixture Prepared from Inverse Suspension-Polymerized Fe(3)O(4)@polyaniline Composite Wang, Yen-Zen Cheng, Yu-Wei Ho, Lin-Chia Huang, Wen-Yao Ho, Ko-Shan Syu, Yu-Ting Polymers (Basel) Article Oleic acid (OA)-modified Fe(3)O(4) nanoparticles were successfully covered with polyanilines (PANIs) via inverse suspension polymerization in accordance with SEM and TEM micrographs. The obtained nanoparticles were able to develop into a ferrite (α-Fe) and α″-Fe(16)N(2) mixture with a superparamagnetic property and high saturated magnetization (SM) of 245 emu g(−1) at 950 °C calcination under the protection of carbonization materials (calcined PANI) and other iron-compounds (α″-Fe(16)N(2)). The SM of the calcined iron-composites slightly decreases to 232 emu g(−1) after staying in the open air for 3 months. The calcined mixture composite can be ground into homogeneous powders without the segregation of the iron and carbon phases in the mortar without significantly losing magnetic activities. MDPI 2021-07-20 /pmc/articles/PMC8309602/ /pubmed/34301136 http://dx.doi.org/10.3390/polym13142380 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Yen-Zen
Cheng, Yu-Wei
Ho, Lin-Chia
Huang, Wen-Yao
Ho, Ko-Shan
Syu, Yu-Ting
Superparamagnetic, High Magnetic α-Fe & α″-Fe(16)N(2) Mixture Prepared from Inverse Suspension-Polymerized Fe(3)O(4)@polyaniline Composite
title Superparamagnetic, High Magnetic α-Fe & α″-Fe(16)N(2) Mixture Prepared from Inverse Suspension-Polymerized Fe(3)O(4)@polyaniline Composite
title_full Superparamagnetic, High Magnetic α-Fe & α″-Fe(16)N(2) Mixture Prepared from Inverse Suspension-Polymerized Fe(3)O(4)@polyaniline Composite
title_fullStr Superparamagnetic, High Magnetic α-Fe & α″-Fe(16)N(2) Mixture Prepared from Inverse Suspension-Polymerized Fe(3)O(4)@polyaniline Composite
title_full_unstemmed Superparamagnetic, High Magnetic α-Fe & α″-Fe(16)N(2) Mixture Prepared from Inverse Suspension-Polymerized Fe(3)O(4)@polyaniline Composite
title_short Superparamagnetic, High Magnetic α-Fe & α″-Fe(16)N(2) Mixture Prepared from Inverse Suspension-Polymerized Fe(3)O(4)@polyaniline Composite
title_sort superparamagnetic, high magnetic α-fe & α″-fe(16)n(2) mixture prepared from inverse suspension-polymerized fe(3)o(4)@polyaniline composite
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8309602/
https://www.ncbi.nlm.nih.gov/pubmed/34301136
http://dx.doi.org/10.3390/polym13142380
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