Controlled Oxidation of Cobalt Nanoparticles to Obtain Co/CoO/Co3O4 Composites with Different Co Content

被引：7
|
作者：
Lozhkomoev, Aleksandr S. [1 ]
Pervikov, Alexander V. [2 ]
Kazantsev, Sergey O. [1 ,3 ]
Suliz, Konstantin V. [1 ,3 ]
Veselovskiy, Roman V. [4 ]
Miller, Andrey A. [5 ]
Lerner, Marat I. [2 ,3 ]
机构：
[1] Russian Acad Sci, Inst Strength Phys & Mat Sci, Lab Nanobioengn, Siberian Branch, Tomsk 634021, Russia
[2] Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Lab Phys Chem Ultrafine Mat, Tomsk 634021, Russia
[3] Natl Res Tomsk State Univ, Res & Educ Ctr Addit Technol, Tomsk 634050, Russia
[4] Russian Acad Sci, Schmidt Inst Phys Earth, Moscow 123242, Russia
[5] Russian Acad Sci, Inst Strength Phys & Mat Sci, Shared Use Ctr Nanotech, Siberian Branch, Tomsk 634021, Russia
来源：
NANOMATERIALS | 2022年 / 12卷 / 15期
基金：
俄罗斯科学基金会;
关键词：
electrical explosion of wire; cobalt nanoparticles; oxidation; composite nanoparticles; magnetic properties; BIOMEDICAL APPLICATIONS; CO3O4; NANOPARTICLES; FACILE SYNTHESIS; PARTICLES; FABRICATION; EXPLOSION; COO/CO3O4; EVOLUTION; MAGNETISM; CATALYST;
D O I：
10.3390/nano12152523
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The paper studies patterns of interaction of electroexplosive Co nanoparticles with air oxygen during heating. The characteristics of Co nanoparticles and composite Co/CoO/Co3O4 nanoparticles formed as a result of oxidation were studied using transmission electron microscopy, X-ray phase analysis, thermogravimetric analysis, differential scanning calorimetry, and vibrating sample magnetometry. It was established that nanoparticles with similar morphology in the form of hollow spheres with different content of Co, CoO, and Co3O4 can be produced by varying oxidation temperatures. The influence of the composition of composite nanoparticles on their magnetic characteristics is shown.
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页数：9
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