Sol-gel synthesis and characterization of foamed Ni3Pt alloys

被引：1

作者：

Ma, Chao ^{[1
]}

Hu, Jieqiong ^{[2
]}

Xie, Ming ^{[2
]}

Cheng, Yongtai ^{[2
]}

Fang, Jiheng ^{[2
]}

Li, Aikung ^{[2
]}

Bi, Yanang ^{[2
]}

Zhang, Qiao ^{[2
]}

机构：

[1] Kunming Inst Precious Met, Kunming 650106, Peoples R China

[2] Yunnan Precious Met Lab Co LTD, Kunming 650106, Peoples R China

来源：

MATERIALS LETTERS | 2024年 / 354卷

基金：

中国国家自然科学基金;

关键词：

Sol-gel preparation; Porous materials; Metals and alloys; Ni3Pt;

D O I：

10.1016/j.matlet.2023.135338

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study focuses on the preparation of Ni3Pt nanoporous alloy foams through the annealing of a colloid composed of Ni(NO3)2, H2PtCl6, and starch under an argon gas atmosphere. Field-emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD) were employed to analyze the chemical composition, structure, and crystallographic properties of the obtained products. The product exhibits a three-dimensional foam structure comprising open pores with an average pore size of 300 nm. Additionally, it possesses structural supports with a thickness of approximately 140 nm within the open-pore configuration. XRD analysis confirms that the obtained product exhibits a face-centered cubic phase, indi-cating that it is a Ni3Pt alloy. This result is further supported by reductions insurface atomic ratio and Pt binding energy observed in the XPS analysis. The resulting open-cell Ni3Pt alloy foam exhibits a homogeneous and well-defined three-dimensional structure, offering a high specific surface area. These characteristics reveal the excellent potential of the Ni3Pt alloy foam for application in battery and electrode materials.

引用

页数：4

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