نتایج جستجو برای: samarium oxide

تعداد نتایج: 177251  

2001
N. Koch J. Ghijsen R. L. Johnson J. Schwartz A. Kahn

N. Koch,*,† J. Ghijsen,‡ R. L. Johnson,§ J. Schwartz,⊥ J.-J. Pireaux,‡ and A. Kahn† Department of Electrical Engineering, Princeton UniVersity, Princeton, New Jersey 08544, Laboratoire Interdisciplinaire de Spectroscopie Electronique, Facultés UniVersitaires Notre-Dame de la Paix, B-5000 Namur, Belgium, II. Institut für Experimentalphysik, UniVersität Hamburg, D-22761 Hamburg, Germany, and Depa...

Journal: :Physical review letters 2013
C Özen Y Alhassid H Nakada

Heavy nuclei exhibit a crossover from vibrational to rotational collectivity as the number of neutrons or protons increases from shell closure towards midshell, but the microscopic description of this crossover has been a major challenge. We apply the shell model Monte Carlo approach to families of even-even samarium and neodymium isotopes and identify a microscopic signature of the crossover f...

The mass transfer performance of a pulsed disc and doughnut column for extraction of samarium and gadolinium from aqueous nitrate solution with D2EHPA was investigated. The effects of operating parameters such as pulsation intensity, continuous and dispersed phase velocities on column performance were investigated. The axial dispersion model was used to obtain the overall mass transfer coef...

Journal: :Journal of Nuclear and Radiochemical Sciences 2003

Katreddi Reddy, Sriramula Vidya Sagar Babu

Five rare earth complexeslanthanum(III),praseodymium(III),neodymium(III), samarium(III) and europium(III) have been synthesized from Schiff base ligand (N,N-bis (2-hydroxy-1-naphthylidene) acetylhydrazone). The complexes were characterized based on elemental analysis, molar conductance, ultraviolet, infrared, mass, thermogravimetric and powder X-ray diffraction studies. Infrared spectra sug...

Journal: :international journal of nanoscience and nanotechnology 2010
j. jasmine ketzial a. samson nesaraj

in order to reduce the operating temperature of solid oxide fuel cells (sofcs), novel electrolyte materials based on ceo2 and baceo3 are being developed in the scientific realm. in this context, we propose a new methodology for preparing the nano-ceramic composite materials such as bace0.9gd0.9o3-δ – ce0.9gd0.9o2-δ (bcgo–cgo) and bace0.8sm0.2o3-δ – ce0.8sm0.2o2-δ (bcso – cso) as possible elec...

Journal: :Catalysts 2023

Water–gas shift (WGS) reaction was performed over 5% Ni/CeO2, Ni/Ce-5% Sm-O, Gd-O, 1% Re 4% Sm-O and Gd-O catalysts to reduce CO concentration produce extra hydrogen. CeO2 M-doped ceria (M = Sm Gd) were prepared using a combustion method, then nickel rhenium added onto the mixed oxide supports an impregnation method. The influence of rhenium, samarium gadolinium on structural redox properties m...

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