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We present results of computational modeling of the formation of uniform spherical silver particles prepared by rapid mixing of ascorbic acid and silver-amine complex solutions in the absence of a dispersing agent. Using an accelerated…

软凝聚态物质 · 物理学 2010-10-12 Daniel T. Robb , Ionel Halaciuga , Vladimir Privman , Dan V. Goia

We summarize our recent results that model the formation of uniform spherical silver colloids prepared by mixing iso-ascorbic acid and silver-amine complex solutions in the absence of dispersants. We found that the experimental results can…

软凝聚态物质 · 物理学 2010-09-22 Ionel Halaciuga , Daniel T. Robb , Vladimir Privman , Dan V. Goia

The paper presents the results of investigation of the structure of porous condensates of Ag-NaCl and Cu-NaCl composition; chemical and phase compositions and dimensions of nanoparticles, produced from the vapour phase by EBPVD method.…

材料科学 · 物理学 2019-01-04 Yu. A. Kurapov , S. E. Litvin , S. M. Romanenko , G. G. Didikin , N. N. Belyavina

A Laser-stimulated synthesis of large silver nanoaggregates consisting of hundreds to thousands of nanoparticles is investigated. It is shown that the morphology of the synthesized nanostructures can be controlled with light and monitored…

化学物理 · 物理学 2009-11-11 A. K. Popov , R. Tanke , J. Brummer , M. Loth , R. Langlois , A. Wruck , G. Taft , R. Schmitz

The structural evolution and dynamics of silver nanodrops Ag${}_{2896}$ (4.4 nm in diameter) during rapid cooling conditions has been studied by means of molecular dynamics simulations and electronic density of state calculations. The…

材料科学 · 物理学 2009-01-22 I. Lobato , J. Rojas , C. V. Landauro , J. Torres

We report on the morphological effects induced by the inhomogeneous absorption of cylindrically polarized femtosecond laser irradiation of silver (Ag) in sub-ablation conditions. A theoretical prediction of the role of surface plasmon…

材料科学 · 物理学 2017-04-11 George D. Tsibidis , Emmanuel Stratakis

This work reports a simple, novel, cost effective and eco-friendly electrolytic synthesis of silver nanoparticles using AgNO3 as metal precursor. The synthesis rate is much faster than other methods and this approach is suitable for large…

综合物理 · 物理学 2011-11-02 T. Theivasanthi , M. Alagar

Photo-induced synthesis and control over the size and shape of colloidal silver nanoparticles is investigated in contrast to photo-stimulated aggregation of small nanoparticles into large fractal-type structures. The feasibility of…

光学 · 物理学 2007-05-23 A. K. Popov , J. Brummer , R. S. Tanke , G. Taft , A. Wruck , M. Loth , R. Langlois , R. Schmitz

The evolution of the nanoporous structure of cylindrical sintered silver samples during high temperature aging, ranging from 200 {\textdegree}C to 350 {\textdegree}C for 350 min, is studied through in-situ Computed X-Ray Tomography.…

Non-polar magnetic nanoparticles agglomerate upon cooling. This process is followed by in-situ small angle X-ray scattering to assess structural properties of the emerging agglomerates. On the length scale of a few particle diameters, no…

软凝聚态物质 · 物理学 2020-11-30 Christian Appel , Björn Kuttich , Tobias Kraus , Bernd Stühn

Electronic and optical properties of silver clusters were calculated using two different \textit{ab initio} approaches: 1) based on all-electron full-potential linearized-augmented plane-wave method and 2) local basis function…

介观与纳米尺度物理 · 物理学 2016-11-28 John T. Titantah , Mikko Karttunen

Silver nanocrystals made by a chemical reduction of silver salts (AgNO$_3$) by sodium borohydride (NaBH$_4$) were studied using Transmission Electron Microscopy (TEM) and light scattering simulations. For various AgNO$_3$/NaBH$_4$ molar…

材料科学 · 物理学 2012-02-22 Annett Thøgersen , Jack Bonsak , Carl Huseby Fosli , Georg Muntingh

Metal nanoparticles have a substantial impact across different fields of science, such as photochemistry, energy conversion, and medicine. Among the commonly used nanoparticles, silver nanoparticles are of special interest due to their…

软凝聚态物质 · 物理学 2022-04-29 Jakob Wolf , Tomasz M. Stawski , Glen J. Smales , Andreas F. Thuenemann , Franziska Emmerling

Nanometer copper ferrite, as a kind of nanometer particle with catalytic activity, and its photothermal and magnetothermal effects as ferrite, can be widely used in different fields. It is a general way to obtain the nano effect of the…

介观与纳米尺度物理 · 物理学 2023-01-04 Zihan Huang , Yiyi Hang

Truly spherical silver nanoparticles are of great importance for fundamental studies including plasmonic applications, but the direct synthesis in aqueous media is not feasible. Using the commonly employed copper-based etching processes,…

Manipulation of metal nanoparticles using atomic force microscope is a promising new technique for probing tribological properties at the nanoscale. In spite of some advancements in experimental investigations, there is no unambiguous…

介观与纳米尺度物理 · 物理学 2010-11-25 Alexei V. Khomenko , Nikolay V. Prodanov

Temperature-controlled-growth of silver nanoclusters in soda glass matrix is investigated by low-frequency Raman scattering spectroscopy. Growth of the nanoclusters is ascribed to the diffusion-controlled precipitation of silver atoms due…

We present an experimental spectroscopic study of large random colloidal aggregates of silver nanoparticles undergoing local restructuring. We argue that such well-known phenomena as strong fluctuation of local electromagnetic fields,…

The shape and alignment of silver nanoparticles embedded in a glass matrix is controlled using silicon ion irradiation. Symmetric silver nanoparticles are transformed into anisotropic particles whose larger axis is along the ion beam. Upon…

A combination of experimental and numerical calculations on metallic silver and platinum nanoparticles deposited on silica substrates is presented, with a focus on the metal-substrate interactions. Experimentally, the nanoparticles are…

材料科学 · 物理学 2024-01-25 F. Ait Hellal , C. Andreazza-Vignolle , P. Andreazza , J. Puibasset
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