Magnetic properties of Pd-Ag nanoalloys obtained by liquid-assisted mechanochemical pathway

被引：7

作者：

Ruiz-Ruiz, Victor-Fabian ^{[1
]}

Betancourt, Israel ^{[2
]}

Zumeta-Dube, Inti ^{[3
,4
]}

Diaz-Pardo, Rebeca ^{[2
]}

Diaz, David ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Dept Quim Inorgan & Nucl, Fac Quim, Ave Univ 3000,Ciudad Univ, Ciudad Mexico 04510, Mexico

[2] Univ Nacl Autonoma Mexico, Inst Invest Mat, Ave Univ 3000,Ciudad Univ, Ciudad Mexico 04510, Coyoacan, Mexico

[3] Inst Politecn Nacl, Ctr Invest Ciencia Aplicada & Tecnol Avanzada, Unidad Legaria, Calzada Legaria 694, Ciudad De Mexico 11500, Mexico

[4] Inst Politecn Nacl, Unidad Profes Interdisciplinaria Ingn & Tecnol Av, Ave Inst Politecn Nacl 2580, Ciudad De Mexico 07340, Mexico

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2022年 / 161卷

关键词：

Pd nanoalloys; Ferromagnetic noble metal nanoalloys; Liquid-assisted mechanochemical synthesis; ELECTRONIC-STRUCTURE; NANOPARTICLES; PARTICLES; NI; CO; NANOMATERIALS; OXIDATION; ALLOYS; METAL;

D O I：

10.1016/j.jpcs.2021.110427

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, we present and discuss the magnetic properties of relatively low silver content Pd100-xAgx nano-alloys (x = 0, 2, 5, 10) obtained by a low cost solvent-assisted mechanochemical synthetic route. Formation of Pd-Ag solid solutions was verified by X-ray diffraction and electron microscopy analyses. Room temperature magnetic characterization of these nanoalloys indicated a paramagnetic response characterized by a magnetic moment lying within the range 0.92-1.95 Bohr magnetons. In contrast, magnetization curves at 5 K exhibited ferromagnetic behavior together with coercive fields between 20 and 168 Oe. The influence of Ag on the electronic structure of the Pd100-xAgx nanoalloys was characterized by X-ray Photoelectron Spectroscopy analysis, for which a charge transfer mechanism determines the magnetic response observed for the nanoalloys studied.

引用

页数：8

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