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The aim of present work was to study the influence of SiO2/Al2O3 molar ratio (MR) on nickel behavior in the mordenites with wide variation of MR during reduction in hydrogen flow. It was found that during reduction treatment variation of MR in mordenite from 10 to 206 influences reducibility and mobility of reduced nickel species. Stability of the reduced samples during storage in air at ambient conditions...
We developed a controllable method based on heterogeneous condensation for preparation of nanoparticles in gas media. Optical extinction measurements show a shift in the peak that correlates well with average size.
Currently, consumer electronics, flexible and portable electronic products are the most popular because of further miniaturization accompanying more functionality per device and low costs. To produce high volume, high-density interconnect substrates, flexible printed circuits (FPCs) will become more and more important. For the fabrication of FPCs, polyimides (Pis) possess many outstanding properties,...
We report the size control of nickel nanoparticles (NiNPs) through thermolytic reduction. The NiNP size was found to be varying from mono to bimodal distribution as a function of the reaction temperature and time with a narrow size distribution of 2 to 20 nm. The NiNP size and shape have been followed by employing two different lipophilic alkaylamine ligands either hexadecylamine or oleylamine. X-ray...
Ti1-xNixO2 (x =0.00-0.12) nano-particle samples were prepared by sol-gel method. We investigated the effect of Ni doping on the structural and Raman scattering properties of the Ti1-xNixO2 system. SEM and XRD measurements show that the particle size of the powder is in nano-scale, and that the magnetic Ni impurities substitute for the Ti sites in the anatase TiO2 phase. Raman spectra also clearly...
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