نتایج جستجو برای: cu nanoparticle doped
تعداد نتایج: 138088 فیلتر نتایج به سال:
The biocompatible surface modification of metal oxide nanoparticles via surface functionalization technique has been used as an important tool in nanotechnology and medicine. In this report, we have prepared aqueous dispersible, trivalent metal ion (samarium)-doped cerium oxide nanoparticles (SmCNPs) as model redox altered CNPs of biological relevance. SmCNP surface modified with hydrophilic bi...
This study describes the synthesis and characterization of Cu-doped ZnO nanorods (NRs) by an electrochemical method in presence two different Cu precursor (Cu+2 Cu+) order to improve photocurrent generation. Analyses resulting materials X-ray diffraction (XRD), scanning electron microscopy (SEM), UV–Vis (ECP) spectroscopy confirm formation well-aligned Würtzite nanostructures form hexagonal rod...
Based on the generalized gradient approximation of density functional theory, geometric structure and electronic properties intrinsic Ti3C2 Cu-, Pt-, Co-, Si-, F-, Cl- or Br-doped are optimized, adsorption process HCHO surface doped is calculated. The effects energy, stability, DOS doping bond length were discussed. results show that energy crystal plane at top site strongest, −7.58 eV. optimal...
We report an electron spin resonance (ESR) study of single crystals of the spin-chain spin-ladder compound (Sr, La, Ca) 14 Cu 24 O 41. The data suggest that in intrin-sically hole doped Sr 14−x Ca x Cu 24 O 41 only a small amount of holes is transferred from the chains to the ladders with increasing x, resulting in a crossover from spin dimerized to uniform spin chains. In the samples of La 14−...
Experimental investigation of heat transfer during pool boiling of two nanofluids, i.e., water-Al2O3 and water-Cu has been carried out. Nanoparticles were tested at the concentration of 0.01%, 0.1%, and 1% by weight. The horizontal smooth copper and stainless steel tubes having 10 mm OD and 0.6 mm wall thickness formed test heater. The experiments have been performed to establish the influence ...
In this investigation copper coated carbon nanotubes (CNTs) were prepared to enhance the interfacial bonding between CNTs and aluminum matrix by the molecular-level mixing process. In optimized plating bath of (1:1) by wt. CNT with Cu, thickness of coated CNTs is reduced to 100 nm to promote uniform distribution of Cu nanoparticle on the surface of pretreated CNTs. The mixing of CNTs was accomp...
Development of Ferromagnetic Superspins in Bare Cu Nanoparticles by Electronic Charge Redistribution
We report on the results of investigating the ferromagnetic properties of bare Cu nanoparticles. Three sets of bare Cu nanoparticle assemblies with mean particle diameters of 6.6, 8.1, and 11.1 nm were fabricated, employing the gas condensation method. Curie-Weiss paramagnetic responses to a weak driving magnetic field were detected, showing the appearance of particle superspins that overcomes ...
Abstract The microelectronics community has shown great interest for high-k percolative nanodielectric materials their applications as integrated capacitors. This work highlights the manufacturing process of high-quality Metal Polymer Nanocomposites (MPCs) thin dielectric films with Cu@C nanoparticles into SU8™ negative photolithographic resist. Four capacitor formulations from 0.8%vol up to 3....
The Cu doped NiO (NiO:Cu) nanoparticles were synthesized by co-precipitation method using NiCl2.6H2O, CuCl2.2H2O for Ni and Cu sources, respectively. Sodium hydroxide has been used as a precipitator agent. Effect of Cu doping agent on the structural and optical properties of nanostructures were characterized by XRD, SEM, AFM, spectrophotometry, FTIR a...
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