Polymer-Assisted Synthesis, Structure and Magnetic Properties of Bimetallic FeCo- and FeNi/N-Doped Carbon Nanocomposites

IF 2.6 4区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Magnetochemistry Pub Date : 2023-09-27 DOI:10.3390/magnetochemistry9100213

Gulsara D. Kugabaeva, Kamila A. Kydralieva, Lyubov S. Bondarenko, Rose K. Baimuratova, Dmitry Yu. Karpenkov, Ekaterina A. Golovkova, Pavel N. Degtyarenko, Nina D. Golubeva, Igor E. Uflyand, Gulzhian I. Dzhardimalieva

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引用次数: 0

Abstract

Bimetallic FeCo and FeNi nanoparticles attract much attention due to their promising magnetic properties and a wide range of practical applications as recording and storage media, catalytic systems in fuel cells, supercapacitors, lithium batteries, etc. In this paper, we propose an original approach to the preparation of FeCo- and FeNi/N-doped carbon nanocomposites by means of a coupled process of frontal polymerization and thermolysis of molecular co-crystallized acrylamide complexes. The phase composition, structure, and microstructure of the resulting nanocomposites are studied using XRD, IR spectroscopy, elemental and thermal analysis, and electron microscopy data. The main magnetic characteristics of the synthesized nanocomposites, including the field dependences and the ZFC-FC curves peculiarities, are studied. It is shown that the obtained FeCo/N-C nanocomposites exhibit exchange bias behavior at low temperatures. In turn, FeNi/N-C nanocomposites are ferromagnetically ordered.

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双金属FeCo和FeNi/ n掺杂碳纳米复合材料的聚合物辅助合成、结构和磁性能

双金属FeCo和FeNi纳米颗粒因其具有良好的磁性而受到广泛关注，在记录和存储介质、燃料电池、超级电容器和锂电池的催化系统等方面有着广泛的实际应用。在本文中，我们提出了一种新颖的方法来制备FeCo和FeNi/ n掺杂的碳纳米复合材料，通过分子共结晶丙烯酰胺配合物的正面聚合和热裂解耦合过程。采用XRD、IR光谱、元素和热分析以及电子显微镜数据研究了所得纳米复合材料的相组成、结构和微观结构。研究了合成的纳米复合材料的主要磁特性，包括磁场依赖性和ZFC-FC曲线的特性。结果表明，制备的FeCo/N-C纳米复合材料在低温下表现出交换偏置行为。反过来，FeNi/N-C纳米复合材料是铁磁有序的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Magnetochemistry Chemistry-Chemistry (miscellaneous)

CiteScore

3.90

自引率

11.10%

发文量

145

审稿时长

11 weeks

期刊介绍： Magnetochemistry (ISSN 2312-7481) is a unique international, scientific open access journal on molecular magnetism, the relationship between chemical structure and magnetism and magnetic materials. Magnetochemistry publishes research articles, short communications and reviews. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.