含铁磁性铁、钴和镍合金的剥离石墨的制备

IF 0.9 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Inorganic Materials Pub Date : 2025-03-11 DOI:10.1134/S0020168524701176

A. D. Muravev, A. V. Ivanov, V. A. Mukhanov, V. A. Razuvaeva, A. V. Vasiliev, P. E. Kazin, V. V. Avdeev

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引用次数: 0

摘要

提出了一种合成含金属剥落石墨的新工艺：将可膨胀石墨与金属（Fe3+， Co2+和Ni2+）硝酸盐和还原剂（三聚氰胺）混合膨胀。这种混合物在惰性（氮气）气氛中900°C的热处理导致脱落石墨的形成，其表面有细小的金属合金（FeCo, FeNi， FeCoNi或CoNi）颗粒。由此制备的剥离石墨样品具有低松散堆积密度（低至6 g/L）和高饱和磁化强度（高达41.2 emu/g）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Preparation of Exfoliated Graphite Containing Ferromagnetic Iron, Cobalt, and Nickel Alloys

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Preparation of Exfoliated Graphite Containing Ferromagnetic Iron, Cobalt, and Nickel Alloys

A new technique has been proposed for the synthesis of metal-containing exfoliated graphite: by expanding a mixture of expandable graphite with metal (Fe³⁺, Co²⁺, and Ni²⁺) nitrates and a reducing agent (melamine). Heat treatment of such a mixture in an inert (nitrogen) atmosphere at 900°C leads to the formation of exfoliated graphite, with fine metallic alloy (FeCo, FeNi, FeCoNi, or CoNi) particles located on its surface. The exfoliated graphite samples thus prepared have low loose bulk density (down to 6 g/L) and high saturation magnetization (up to 41.2 emu/g).

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来源期刊

Inorganic Materials 工程技术-材料科学：综合

CiteScore

1.40

自引率

25.00%

发文量

审稿时长

3-6 weeks

期刊介绍： Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.