Synthesis of Au nanoparticles by the reaction of HAuCl4·nH2O with organoaluminum compounds

IF 2.1 4区材料科学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Journal of Nanoparticle Research Pub Date : 2025-05-02 DOI:10.1007/s11051-025-06328-9

Lyudmila V. Parfenova, Almira Kh. Bikmeeva, Pavel V. Kovyazin, Eldar R. Palatov, Leonard M. Khalilov, Nina M. Ivanova, Semen N. Sergeev

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引用次数: 0

Abstract

The reaction of HAuCl₄^.nH₂O with organoaluminum compounds (HAlBuⁱ₂ or AlR_3, R = Me, Et, Buⁱ) in organic solvents, followed by hydrolysis in the presence of a tertiary thiol (5-methylundecane-5-thiol), afforded gold nanoparticles (AuNPs). Particle sizes and size distributions depended largely on the structure of the original organoaluminum reagent and the nature of the solvent. The smallest particle sizes ranging from 2 to 20 nm were observed when reducing HAuCl₄ with HAlBuⁱ₂. Nanoparticles have been characterized by the means of scanning transmission electron microscopy, photon cross-correlation spectroscopy, X-ray photoelectron spectroscopy, and UV–Vis spectroscopy. The proposed method may be further utilized for the deposition of metal nanoparticles onto solid supports for applications in catalysis and other fields.

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用HAuCl4·nH2O与有机铝化合物反应合成金纳米颗粒

HAuCl4的反应。nH2O与有机铝化合物（HAlBui2或AlR3， R = Me, Et, Bui）在有机溶剂中，然后在叔硫醇（5-甲基十一烷-5-硫醇）存在下水解，得到金纳米颗粒（AuNPs）。颗粒大小和粒度分布在很大程度上取决于原有机铝试剂的结构和溶剂的性质。当用HAlBui2还原HAuCl4时，观察到最小的粒径范围为2 ~ 20 nm。利用扫描透射电子显微镜、光子互关光谱、x射线光电子能谱和紫外可见光谱对纳米颗粒进行了表征。该方法可进一步用于金属纳米颗粒在固体载体上的沉积，用于催化和其他领域的应用。

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来源期刊

Journal of Nanoparticle Research 工程技术-材料科学：综合

CiteScore

4.40

自引率

4.00%

发文量

198

审稿时长

3.9 months

期刊介绍： The objective of the Journal of Nanoparticle Research is to disseminate knowledge of the physical, chemical and biological phenomena and processes in structures that have at least one lengthscale ranging from molecular to approximately 100 nm (or submicron in some situations), and exhibit improved and novel properties that are a direct result of their small size. Nanoparticle research is a key component of nanoscience, nanoengineering and nanotechnology. The focus of the Journal is on the specific concepts, properties, phenomena, and processes related to particles, tubes, layers, macromolecules, clusters and other finite structures of the nanoscale size range. Synthesis, assembly, transport, reactivity, and stability of such structures are considered. Development of in-situ and ex-situ instrumentation for characterization of nanoparticles and their interfaces should be based on new principles for probing properties and phenomena not well understood at the nanometer scale. Modeling and simulation may include atom-based quantum mechanics; molecular dynamics; single-particle, multi-body and continuum based models; fractals; other methods suitable for modeling particle synthesis, assembling and interaction processes. Realization and application of systems, structures and devices with novel functions obtained via precursor nanoparticles is emphasized. Approaches may include gas-, liquid-, solid-, and vacuum-based processes, size reduction, chemical- and bio-self assembly. Contributions include utilization of nanoparticle systems for enhancing a phenomenon or process and particle assembling into hierarchical structures, as well as formulation and the administration of drugs. Synergistic approaches originating from different disciplines and technologies, and interaction between the research providers and users in this field, are encouraged.