Results 51 to 60 of about 147,621 (248)

Surfactant-free syntheses and pair distribution function analysis of osmium nanoparticles

Beilstein Journal of Nanotechnology, 2022
A surfactant-free synthesis of precious metal nanoparticles (NPs) performed in alkaline low-boiling-point solvents has been recently reported. Monoalcohols are here investigated as solvents and reducing agents to obtain colloidal Os nanoparticles by ...
Mikkel Juelsholt, Jonathan Quinson, Emil T. S. Kjær, Baiyu Wang, Rebecca Pittkowski, Susan R. Cooper, Tiffany L. Kinnibrugh, Søren B. Simonsen, Luise Theil Kuhn, María Escudero-Escribano, Kirsten M. Ø. Jensen   +10 more
doaj   +1 more source

Obtaining and Characterizing the Osmium Nanoparticles/n–Decanol Bulk Membrane Used for the p–Nitrophenol Reduction and Separation System

Membranes, 2022
Liquid membranes based on nanoparticles follow a continuous development, both from obtaining methods and characterization of techniques points of view. Lately, osmium nanoparticles have been deposited either on flat membranes, with the aim of initiating ...
Aurelia Cristina Nechifor, Alexandru Goran, Szidonia-Katalin Tanczos, Florentina Mihaela Păncescu, Ovidiu-Cristian Oprea, Alexandra Raluca Grosu, Cristian Matei, Vlad-Alexandru Grosu, Bogdan Ștefan Vasile, Paul Constantin Albu   +9 more
doaj   +1 more source

DIFFERENTIAL PULSE POLAROGRAPHIC DETERMINATION OF OSMIUM BY CATALYSIS OF PYROGALLOL-RED BROMATE REACTION [PDF]

Journal of Sciences, Islamic Republic of Iran, 1997
A highly sensitive differential pulse polarographic (DPP) method has been developed for the determination of trace amounts of osmium, based on the catalytic effect of osmium (VIII) on the oxidation of pyrogallol red (PGR) by sodium bromate at pH 7.00 and
doaj  

Influence of Transition Metals on Animal and Human Health: A Review

Contemporary Agriculture, 2018
Niobium, osmium, scandium, tungsten and vanadium are transition metals naturally occuring in the environment, particularly in the Earth’s crust. Anthropogenic activities, primarily industrial technologies, have precipitated significant alternations in ...
Bilčíková Jana, Fialková Veronika, Kováčiková Eva, Miškeje Michal, Tombarkiewicz Barbara, Kňažická Zuzana   +5 more
doaj   +1 more source

A hard metallic material: Osmium Diboride

, 2006
We calculate the structural and electronic properties of OsB2 using density functional theory with or without taking into account spin-orbit (SO) interaction.
D. M. Teter, D. W. He, H. J. Xiang, J. G. Hou, Jinlong Yang, P. Blaha, Qingshi Zhu, R. B. JR. Roof, R. F. W. Bader, Z. Y. Chen   +9 more
core   +1 more source

Recovery of valuable metals from industrial wastes

Metalurgija, 2013
Recovery of valuable metals as osmium and rhenium from a industrial wastes are an actual problem. A wastes of copper production treat slime and cake. The content of rhenium in them makes 600 – 2 000 g/t, osmium to 50 g/t.
A. K. Serikbayeva, N. Telegusova, B. B. Bekentayev   +2 more
doaj  

Emulsion Liquid Membranes Based on Os–NP/n–Decanol or n–Dodecanol Nanodispersions for p–Nitrophenol Reduction

Molecules
Membrane materials with osmium nanoparticles have been recently reported for bulk membranes and supported composite membrane systems. In the present paper, a catalytic material based on osmium dispersed in n–decanol (nD) or n–dodecanol (nDD) is presented,
Andreia Pîrțac, Aurelia Cristina Nechifor, Szidonia-Katalin Tanczos, Ovidiu Cristian Oprea, Alexandra Raluca Grosu, Cristian Matei, Vlad-Alexandru Grosu, Bogdan Ștefan Vasile, Paul Constantin Albu, Gheorghe Nechifor   +9 more
doaj   +1 more source

Synthesis, crystal structure, and Hirshfeld surface analysis of undecacarbonyl{tris[4-(methylsulfanyl)phenyl]arsine}-triangulo-triosmium(0)

Acta Crystallographica Section E: Crystallographic Communications
The title compound, [Os3(C21H21AsS3)(CO)11] or [Os3{As(C6H4SCH3)3}(CO)11], comprises a triangle of Os atoms, two of which are bonded to four carbonyl ligands.
Siti Syaida Sirat, Mohd Mustaqim Rosli, Sang Loon Tan, Ibrahim Abdul Razak, Omar bin Shawkataly   +4 more
doaj   +1 more source

Effects of nanomaterials on Cs3Sb photocathode emission performance

AIP Advances, 2022
A new approach to preparing the cesium antimonide photocathode has been developed. A tungsten sponge diffusion barrier layer, instead of the conventional nickel pipe, was used as the evaporation source so that a slow and uniform evaporation of the ...
Yanwen Liu, Hong Tian, Fen Li, Guojian Wang, Xiaoxia Wang   +4 more
doaj   +1 more source

HD 65949: Rosetta Stone or Red Herring [PDF]

, 2010
HD 65949 is a late B star with exceptionally strong Hg II at 3984[A], but it is not a typical HgMn star. The Re II spectrum is of extraordinary strength.
Abt, Abt, Adelman, Asplund, Biémont, Biémont, C. R. Cowley, Carlson, Castelli, Cowan, Cowley, Cowley, Cowley, Cowley, Cowley, Cowley, Cowley, Dekker, Dolk, Dworetsky, Dworetsky, Engleman, Fivet, Fivet, Fuhr, Fuhr, G. M. Wahlgren, Gieseking, Gieseking, González, Guthrie, Hauck, Hubrig, Ivarsson, J. F. González, Kaufer, Klinkenberg, Kramida, Kunzli, Kupka, Leckrone, Ljung, Lodders, Mayor, Meggers, Meléndez, Michaud, Michaud, Moon, Munari, Nilsson, Nilsson, O. Schütz, P. Palmeri, P. Quinet, Palmeri, Palmeri, Palmeri, Paunzen, Pickering, Pintado, Preston, Proffitt, Quinet, Quinet, Quinet, Richer, Rosberg, Ryabchikova, Ryabchikova, S. Hubrig, Sansonetti, Sansonetti, Smirnov, Torres, Unsöld, van Leeuwen, Venn, Wahlgren, Wahlgren, Wahlgren, Wolk, Woolf, Wyart, Wyart, Zielińska, É. Biémont   +86 more
core   +4 more sources