The Preparation of Nanocomposite with a Core-Shell Structure Made of Carbon Matrices and Lanthanum Nanoparticles

被引：2
|
作者：
Kozlov, A. [1 ]
Suslova, E. [1 ]
Maksimov, S. [1 ]
Isaikina, O. [1 ]
Maslakov, K. [1 ]
Shashurin, D. [2 ]
Savilov, S. [1 ]
Shelkov, G. [3 ]
机构：
[1] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Fac Med, Moscow 119991, Russia
[3] Joint Inst Nucl Res, Dubna 141980, Russia
来源：
PHYSICS OF PARTICLES AND NUCLEI LETTERS | 2023年 / 20卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
D O I：
10.1134/S1547477123050473
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
A method for synthesis of nanocomposite with core-shell structure made of carbon matrices and La nanoparticles for its subsequent approbation as contrast agent in radiological studies has been proposed. The synthesis includes three stages, consisting of (1) preparation of few-layer graphite fragments (graphite nanoflakes, GNF) as carbon matrix support, (2) preparation of La-containing composite by impregnation of GNF nanoparticles with lanthanum nitrate solution with subsequent annealing and (3) surface graphitization of obtained product. All samples were studied by transmission electron microscopy, Raman and X-ray photoelectron spectroscopy. It was shown that the graphite shells contained from 2 to 3 carbon layers, and the La-containing phase was lanthanum carbonate.
引用
收藏
页码：1254 / 1258
页数：5
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