Birjega R. – TechConnect Briefs

Nanocomposite dodecylsulfate-modified Mg-Al layered double hydroxide thin films deposited via laser technique

Vlad A., Birjega R., Matei A., Dumitru M., Dinescu M., Zavoianu R., Pavel O.D., Corobea M.C., National Institute for Lasers, Plasma and Radiation Physics, Romania, RO

Layered double hydroxides (LDHs), also known as hydrotalcites or anionic clays having a brucite-like structure are a class of host-guest materials, which can be described by the formula [M2+1-xM3+x(OH)2]x+(An-)x/n•mH2O where M2+ and M3+ are divalent [...]

Nanoscale Maghemite Iron Oxide Powders Prepared by Laser Pyrolysis

Morjan I., Dumitrache F., Alexandrescu R., Birjega R., Voicu I., Gavrila L., Soare I., Filotti G., Kuncser V., Ciupina V., National Institute for Lasers, Plasma and Radiation Physics, RO

Nano-sized maghemite particles (usually less than 15 nm diameter) have been directly synthesized by the laser induced pyrolysis of iron pentacarbonyl vapors. Ethylene was used as sensitizer of the induced reaction. By the controlled use [...]