نتایج جستجو برای: au nano dendrites

تعداد نتایج: 138680  

2017
Doga Bilican Jordina Fornell Jordi Sort Eva Pellicer

Bismuth (Bi) electrodeposition was studied on Si/Ti/Au, FTO-, and ITO-coated glasses from acidic nitrate solutions with and without gluconate within a narrow potential window (ΔE = 80 mV). This potential range was sufficient to observe a change in particle shape, from polyhedrons (including hexagons) to dendrites, the trend being slightly different depending on substrate activity. In all cases,...

Journal: :Materials Science and Engineering A-structural Materials Properties Microstructure and Processing 2021

Simultaneously increasing the strength and ductility of hot work die steels is significant interest for broad applications. The in-situ development a nano-phase in promising method achieving this objective. However, little success has been reported so far. In study, trace amounts TiC nanoparticles were successfully introduced into high-Cr steel (HHD) through an innovative using nano-TiC/Al mast...

2016
Dean H. Barrett Michael S. Scurrell Cristiane B. Rodella Beatriz Diaz David G. Billing Paul J. Franklyn

For comparative means, a current Au-TiO 2 catalyst was used or order to benchmark current standards for nano-Au catalysts. The Aurolite® catalyst is currently the only commercially produced Au-TiO 2 catalyst comprising of 1% Au (by mass) loaded on P25 type TiO 2 comprising approximately 20% rutile and 80% anatase. A second batch of catalysts was examined where the catalyst composition was simil...

2013
Yumeng Shi Jing-Kai Huang Limin Jin Yu-Te Hsu Siu Fung Yu Lain-Jong Li Hui Ying Yang

We report a controllable wet method for effective decoration of 2-dimensional (2D) molybdenum disulfide (MoS2) layers with Au nanoparticles (NPs). Au NPs can be selectively formed on the edge sites or defective sites of MoS2 layers. The Au-MoS2 nano-composites are formed by non-covalent bond. The size distribution, morphology and density of the metal nanoparticles can be tuned by changing the d...

Journal: :Materials Science and Engineering A-structural Materials Properties Microstructure and Processing 2022

Finite element modeling is used to simulate the secondary creep rate of alloys with an inhomogeneous distribution nano-precipitates, located within colonies long, parallel dendrites, due elemental segregation during directional solidification. Three-dimensional, periodic unit cells are created approximate aligned dendritic microstructure, cylindrical dendrites (with high resistance nanoprecipit...

2011
S. M. Prokes O. J. Glembocki

The growth of monoclinic Ga2O3 nanowires, nano-ribbons and nano-sheets has been investigated. Results indicate that high quality single crystal nanowires can be grown at 900°C using an Au catalyst, while single crystal nano-ribbons and nano-sheets require no metal catalyst for growth. Since bulk Ga2O3 is a promising material for high temperature sensing, Ga2O3 nanowires and nano-ribbons may pro...

Journal: :Ultramicroscopy 2016
S V Venkatakrishnan L F Drummy M A Jackson C A Bouman J P Simmons M De Graef

We introduce a forward model for the computation of high angle annular dark field (HAADF) images of nano-crystalline spherical particles and apply it to image simulations for assemblies of nano-spheres of Al, Cu, and Au with a range of sizes, as well as an artificial bi-sphere, consisting of solid hemispheres of Al and Cu or Al and Au. Comparison of computed intensity profiles with experimental...

Journal: :China Foundry 2022

Microstructure and mechanical properties of non-equiatomic (CuNi)100−xCox (x=15, 20, 25 30, at.%) medium-entropy alloys (MEAs) prepared by vacuum arc-melting were investigated. Results show that all the as-cast MEAs exhibit dual face-centered cubic (fcc) solid-solution phases with identical lattice constant, showing typical dendrite structure consisting (Ni, Co)-rich phase in dendrites Cu-rich ...

2016
Maria V. Brundo Roberta Pecoraro Fabio Marino Antonio Salvaggio Daniele Tibullo Salvatore Saccone Vincenzo Bramanti Maria A. Buccheri Giuliana Impellizzeri Viviana Scuderi Massimo Zimbone Vittorio Privitera

The effect of the nanoparticles on the marine organisms, depends on their size, chemical composition, surface structure, solubility and shape. In order to take advantage from their activity, preserving the surrounding environment from a possible pollution, we are trying to trap the nanoparticles into new nanomaterials. The nanomaterials tested were synthesized proposing a ground-breaking approa...

Journal: Nanomedicine Journal 2014
Ahmad Reza Shahverdi, Ali Almasirad Katayon Bahrami Mahshid Nabavi Marjan Golkar Pardis Nazari

Objective(s):   Metal nanoparticles (NPs) offer a wide variety of potential applications in pharmaceutical sciences due to the unique advances in nanotechnology research. In this work, bimetal Ag-Au alloy NPs were prepared and their combinations with other antibiotics were tested against Staphylococcus aureus.   Materials and Methods: Firstly, Ag-Au alloy NPs with Au/Ag molar ratio of 1:1 was f...

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