Results 41 to 50 of about 389,099 (341)

Synthesis and Characterization of LaNiO3, LaNi(1-x)Fe xO3 andLaNi(1-x)Co xO3 Perovskite Oxides for Catalysis Application [PDF]

Materials Research, 2002
Mixed metal oxides with perovskite-type structure show a great potential to be used in catalysis, electrocatalysis and electronic ceramics. Perovskites oxides catalysts with the composition LaNiO3, LaNi(1-x)Fe xO3 and LaNi(1-x)Co xO3 (x = 0.4 and 0.7 ...
Sania Maria de Lima, José Mansur Assaf
doaj   +1 more source

Demetallization of crude oil using Oxaline functionalized easily separable paramagnetic rust products

Zanco Journal of Pure and Applied Sciences, 2023
     The removal of catalyst poisoning compounds from crude oil or heavy oil fractions improves the efficiency of oil refineries and reduces the cost of high temperature corrosion damage during combustion. In this study, the demetallization of crude oil
Cheman Dlshad Yousif , Essa Ismaeil Ahmed   +1 more
doaj   +1 more source

Hexaazide octahedral molybdenum cluster complexes: synthesis, properties and the evidence of hydrolysis [PDF]

, 2016
This article reports the synthesis, crystal structure of new molybdenum hexaazide cluster complex (ⁿBu₄N)₂[{Mo₆I₈}(N₃)₆] (3) and comparison of its photophysical and electrochemical properties to those of earlier reported analogues (ⁿBu₄N)₂[{M₆X₈}(N₃)₆ ...
Brylev, Konstantin A., Efremova, Olga A., Kitamura, Noboru, Kuratieva, Natalia V., Mironov, Yuri V., Novozhilov, Igor N., Shestopalov, Michael A., Vorotnikov, Yuri A., Yanshole, Vadim V.   +8 more
core   +1 more source

Analytical studies on medieval lead ingots from Wrocław and Kraków (Poland): a step towards understanding bulk trade of lead from Kraków and Silesia Upland Pb–Zn deposits

Heritage Science, 2022
Origins of medieval lead artefacts are hard to establish due to re-smelting and mixing. One can obtain conclusive evidence from ingots that served for bulk trade and originated directly from the mines.
Beata Miazga, Paweł Duma, Paweł Cembrzyński, Milena Matyszczak, Jerzy Piekalski   +4 more
doaj   +1 more source

Elemental composition of atmospheric particulate matter during 2006 wet season at a rural background site in Tanzania [PDF]

, 2010
The elemental composition of PM10 was studied during 2006 wet season in a rural background site of Morogoro, Tanzania. A Gent PM10 stacked filter unit sampler with coarse and fine Nuclepore polycarbonate filters, providing fine (0.4 μm) and coarse (8 μm)
Maenhaut, Willy, Mkoma, SL, Raes, Niko
core   +3 more sources

PIXE and ToF-SIMS analysis of streaker samplers filters [PDF]

, 2004
This paper presents methodological innovations introduced in the characterisation of urban aerosol collected in Italy in a recent campaign. Two complementary ion beam analysis (IBA) techniques were used to analyse Nuclepore filters used in continuous ...
Adriaens, Mieke, D'ALESSANDRO, A, LUCARELLI, F, MARCAZZAN, G, NAVA, S, PRATI, P, VALLI, G, VAN HAM, R, VECCHI, R, ZUCCHIATTI, A   +9 more
core   +2 more sources

Environmentally benign copper nanoparticles supported on walnut shell as a highly durable nanocatalyst for the synthesis of propargylamines [PDF]

Journal of the Serbian Chemical Society, 2017
This study was an attempt to prepare copper nanoparticles and to determine their catalytic activity employing walnut shell (WS) residue as a green support and a reusable material.
Saadati Fariba, Leghaei Vahid, Zamani Asghar   +2 more
doaj   +1 more source

Cationic vacancy induced room-temperature ferromagnetism in transparent conducting anatase Ti_{1-x}Ta_xO_2 (x~0.05) thin films

, 2012
We report room-temperature ferromagnetism in highly conducting transparent anatase Ti1-xTaxO2 (x~0.05) thin films grown by pulsed laser deposition on LaAlO3 substrates. Rutherford backscattering spectrometry (RBS), x-ray diffraction (XRD), proton induced
Ariando, Barman, A. Roy, Breese, M. B. H., Dai, Y., Dhar, S., Ding, J., Feng, Y. P., Hilgenkamp, H., Motapothula, M., Neuber, G., Qi, D. -C., Ruebhausen, M., Rusydi, A., Santoso, I., Venkatesan, T., Wee, A. T. S., Yakovlev, N. L., Yang, K., Yi, J. B.   +18 more
core   +1 more source

Thermoluminescence behavior of KClXBr1−X: in mixed crystals exposed to gamma radiation [PDF]

, 2014
In-doped KClXBr1−X (X=1, 0.75, 0.5, 0.25 and 0) mixed crystal has been grown by the Czochralski method. The segregation coefficient of In was studied by the inductively coupled plasma atomic emission spectrometry (ICP-OES). The crystal structure has been
Abdi, Mohammad Reza, Faiez, M. R., Faripour, H., Hosseini, S. A., Khareiky, A. Aghay, Saraee, Khadijeh Rezaee Ebrahim, Soltani, Nayereh   +6 more
core   +1 more source

alpha - HgS Nanocrystals: Synthesis, Structure and Optical Properties

, 2011
Well-separated mercury sulfide (HgS) nanocrystals are synthesized by a wet chemical route. Transmission electron microscopy studies show that nanocrystals are nearly spherical in shape with average size of 9 nm.
A.K. Dash, A.K. Mahapatra, Bond, Bruchez, Campbell, Colvin, Dabbousi, Klein, Kreingol’d, Lamber, Ma, Mews, Qadri, Roberts, Sapriel, Wang, Wu, Xu, Yeh, Yu, Zallen   +20 more
core   +1 more source