Copper-zirconium alloys with high conductivity were produced using powder metallurgy. Two-steps manufacturing process, containing mechanical alloying followed by hot pressing, was applied in achieving improved and physical properties of Cu-Zr alloy. In this paper, the influence boron on studied Cu-1Zr (wt.%) Cu-1.1Zr-0.3B systems. Scanning electron microscopy, laser nanoparticle sizer, computed...

Semiconductor catalysts play a potential role for efficient electrocatalytic hydrogen production. In this work, copper bismuth oxide (CuBi2O4) nanostructures were synthesized via the coprecipitation method using two different Cu precursors: one is Cu(NO3)3·9H2O and other CuCl2. When Cu(NO3)3·9H2O, sample showed an interconnected aggregated irregular spherical CuBi2O4 nanoparticle structure. On ...

Copper is an interesting material for printed electronics inks because, for example, of its good conductivity and lower raw material price compared to silver. However, post-processing Cu inks is challenging because of non-conductive copper oxide. In this work, inkjet-printed Cu nanoparticle structures were sintered on a polyimide substrate with a continuous-wave 808-nm diode laser. Laser sinter...

An analysis of the steady mixed convection boundary layer flow past a vertical permeable surface embedded in a porous medium saturated by a nanofluid is performed in this study. Numerical solutions of the similarity equations are obtained using the shooting method. Three types of metallic or nonmetallic nanoparticles, namely Copper (Cu), Alumina (Al2O3) and Titania (TiO2) are considered by usin...

Silver nanoparticles capped with mercaptoacetic acid and 2-aminoethanethiol short-chain alkanethiols were prepared by a one-step method in aqueous solution for monitoring pH and a range of heavy metal ions. The mode of transduction is optical, based on the change in aggregation of the nanoparticles in solution. Because of the different ionic interactions between the modified nanoparticles, thes...

The effect of heat source/sink on steady two-dimensional laminar MHD mixed convection boundary layer flow past a vertical permeable surface embedded in a porous medium saturated by a nanofluid is performed in this study. Numerical solutions of the similarity equations are obtained using the shooting method. Three types of metallic or nonmetallic nanoparticles, namely Copper (Cu), Alumina (Al2O3...

Introduction. The combination of positron emission tomography and magnetic resonance imaging offers a major breakthrough in detecting, characterizing and monitoring disease. This work introduces a novel contrast agent, detected by both modalities, which employs a self-inserting chelator with linker peptide derived from melittin (a host defense peptide in honeybee venom). Based on a lipid-encaps...

This work aims at presenting a nanoparticle generation non-transportable facility in aerosol phase called “CAIMAN” (acronym for Characterization of Instruments Measuring Aerosols of Nanoparticles) and its performances. This facility delivers primary nanoaerosols from electrodes made of C, Al, Cu (and mixtures containing Be), Ag, Constantane (a mixture of Cu-55wt% and Ni-45wt%) particles at know...

• PdCu single atom alloys (SAA) selectively catalyse furfural hydrogenation. Successful deposition of Pd atoms on Cu nanoparticles via galvanic replacement. SAAs are catalytically superior to monometallic and catalysts. host enhance hydrogen dissociative adsorption. Single-atom catalysts serve as a skilful control precious metals heterogenous where all active sites accessible for catalytic reac...

In this study, enhancements of thermal conductivities of ethylene glycol, water, and synthetic engine oil in the presence of copper (Cu), copper oxide (CuO), and multi-walled carbon nanotube (MWNT) are investigated using both physical mixing method (two-step method) and chemical reduction method (one-step method). The chemical reduction method is, however, used only for nanofluid containing Cu ...