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超小镍锰氧化物纳米颗粒的定制：优化合成条件及溶剂效应

Tailoring of Ultrasmall NiMnO Nanoparticles: Optimizing Synthesis Conditions and Solvent Effects.

作者信息

Saikova Svetlana, Nemkova Diana, Krolikov Anton, Pavlikov Aleksandr, Volochaev Mikhail, Samoilo Aleksandr, Ivanenko Timur, Kuklin Artem

机构信息

School of Non-Ferrous Metals, Siberian Federal University, Svobodny, 79, 660041 Krasnoyarsk, Russia.

Institute of Chemistry and Chemical Technology, Federal Research Center "Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences", Akademgorodok, 50/24, 660036 Krasnoyarsk, Russia.

出版信息

Molecules. 2024 Oct 13;29(20):4846. doi: 10.3390/molecules29204846.

DOI:10.3390/molecules29204846
PMID:39459220
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11510137/
Abstract

Nickel manganese oxide (NiMnO) combines magnetic and dielectric properties, making it a promising material for sensor and supercapacitor applications, as well as for catalytic water splitting. The efficiency of its utilization is notably influenced by particle size. In this study, we investigate the influence of thermal treatment parameters on the phase composition of products from alkali co-precipitation of nickel and manganese (II) ions and identify optimal conditions for synthesizing phase-pure nickel manganese oxide. Ultrafine nanoparticles of NiMnO (with sizes as small as 2 nm) are obtained via liquid-phase ultrasonic dispersion, exhibiting a narrow size distribution. A systematic exploration of the solvent nature (water, N-methyl-2-pyrrolidone, dimethyl sulfoxide, dimethylformamide) on the efficiency of ultrasonic dispersion of NiMnO nanoparticles is provided. It is demonstrated that particle size is influenced not only by absorbed acoustic power, dependent on the physical properties of the used solvent (boiling temperature, gas solubility, viscosity, density) but also by the chemical stability of the solvent under prolonged ultrasonic treatment. Our findings provide insights for designing ultrasonic treatment protocols for nanoparticle dispersions with tailored particle sizes.

摘要

镍锰氧化物（NiMnO）兼具磁性和介电性能，这使其成为传感器、超级电容器应用以及催化水分解领域的一种有前景的材料。其利用效率受到粒径的显著影响。在本研究中，我们研究了热处理参数对镍和锰（II）离子碱共沉淀产物相组成的影响，并确定了合成纯相镍锰氧化物的最佳条件。通过液相超声分散获得了尺寸小至2 nm的NiMnO超细纳米颗粒，其尺寸分布狭窄。对溶剂性质（水、N-甲基-2-吡咯烷酮、二甲基亚砜、二甲基甲酰胺）对NiMnO纳米颗粒超声分散效率的影响进行了系统探索。结果表明，粒径不仅受吸收声功率的影响（吸收声功率取决于所用溶剂的物理性质，如沸点、气体溶解度、粘度、密度），还受溶剂在长时间超声处理下的化学稳定性影响。我们的研究结果为设计具有定制粒径的纳米颗粒分散体的超声处理方案提供了见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/c9c731b84224/molecules-29-04846-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/21eff6484733/molecules-29-04846-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/3109985029d6/molecules-29-04846-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/09bb9b5c6c00/molecules-29-04846-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/626e3a0064e3/molecules-29-04846-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/3aae7064c736/molecules-29-04846-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/2a4459d955e7/molecules-29-04846-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/8f96f85622f8/molecules-29-04846-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/c9c731b84224/molecules-29-04846-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/21eff6484733/molecules-29-04846-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/3109985029d6/molecules-29-04846-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/09bb9b5c6c00/molecules-29-04846-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/626e3a0064e3/molecules-29-04846-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/3aae7064c736/molecules-29-04846-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/2a4459d955e7/molecules-29-04846-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/8f96f85622f8/molecules-29-04846-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2105/11510137/c9c731b84224/molecules-29-04846-g008.jpg

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