Formation, Morphology, and Size Parameters of Nanopowders Based on Mg3Si2O5(OH)4–Ni3Si2O5(OH)4 Nanoscrolls

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

Inorganic Materials Pub Date : 2024-03-10 DOI:10.1134/S0020168523100060

M. E. Kurguzkina, T. P. Maslennikova, V. V. Gusarov

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Abstract

We have studied the effect of the composition of starting Mg₁ _{– х}Ni_х(OH)₂ nanoplates on the formation of (Mg₁ _{– х}Ni_х)₃Si₂O₅(OH)₄ nanoscrolls under hydrothermal conditions and determined the structure, morphology, size parameters, and specific surface area of the synthesized nanopowders based on (Mg₁ _{– х}Ni_х)₃Si₂O₅(OH)₄ hydrosilicates with the chrysotile structure. The thermodynamically driven dehydration of the starting (Mg₁ _{– х}Ni_х)(OH)₂ hydroxide with х ≳ 0.4 during hydrothermal treatment of a mixture of magnesium nickel hydroxide nanoplates and silica gel (SiO₂∙nH₂O) particles dispersed in an aqueous sodium hydroxide solution has been shown to play a key role in determining the formation and structural characteristics of (Mg₁ _{– х}Ni_х)₃Si₂O₅(OH)₄ nanopowders with tubular structure.

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基于 Mg3Si2O5(OH)4-Ni3Si2O5(OH)4 纳米卷的纳米粉体的形成、形态和尺寸参数

我们研究了水热条件下起始 Mg1 - хNiх(OH)2 纳米板的组成对形成 (Mg1 - хNiх)3Si2O5(OH)4 纳米卷的影响，并确定了基于具有温石棉结构的 (Mg1 - хNiх)3Si2O5(OH)4 水硅酸盐合成的纳米粉末的结构、形态、尺寸参数和比表面积。在水热处理过程中，起始的（镁1 - х镍х）（OH）2氢氧化物（х ≳ 0.4 的氢氧化镁镍纳米板和分散在氢氧化钠水溶液中的硅胶（SiO2∙nH2O）颗粒的混合物进行水热处理时，在决定具有管状结构的（Mg1 - хNiх）3Si2O5(OH)4 纳米粉末的形成和结构特征方面起着关键作用。

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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.