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Приказ резултата 11-20 од 281
Distribution and fractionation of heavy metals in the Tisa (Tisza) River sediments
(Springer Heidelberg, Heidelberg, 2007)
Introduction. In this work, sediments of the River Tisa (Tisza) are studied to assess their environmental pollution levels for some major heavy metals, as well as to predict the investigated elements' mobility on the basis ...
Promotional effect of Sn-ad on the ethanol oxidation at Pt3Sn/C catalyst
(Elsevier Science Inc, New York, 2009)
Oxidation of ethanol was studied at Sn-ad modified and unmodified Pt3Sn/C and Pt/C catalysts. Pt3Sn/C and Pt/C catalysts were characterized by XRD. Potentiodynamic and chronoamperometric measurements were used to establish ...
The qualitative electrochemical determination of clarithromycin and spectroscopic detection of its structural changes at gold electrode
(Elsevier, 2007)
The aim of the present study was the qualitative determination of the pure clarithromycin using a gold electrode in neutral electrolyte by cyclic linear sweep voltammetry. It was shown that in the range of -1.2 V to 1.0 V ...
Textural and fractal properties of CuO/Al 2 O 3 catalyst supports
(Elsevier, 2006)
Reactive amorphous aluminas with a high surface area, suitable as a precursor for catalyst supports, are obtained by flash calcination of gibbsite in a reactor for pneumatic transport in the dilute two phase flow regime. ...
Selective magnetic GMA based potential sorbents for molybdenum and rhenium sorption
(Elsevier, 2017)
Magnetic macroporous crosslinked copolymer glycidyl methacrylate (GMA) and ethylene glycol dimethacrylate (EGDMA) samples with different magnetite content were prepared by suspension copolymerization and functionalized ...
Mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)
(Elsevier, 2016)
The mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME) functionalized by reaction of the pendant epoxy groups ...
Kinetics of hexavalent chromium sorption on amino-functionalized macroporous glycidyl methacrylate copolymer
(Elsevier, 2009)
Two samples of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), poly(GMA-co-EGDMA), with different porosity parameters were synthesized by suspension copolymerization and functionalized ...
Corrosion resistance of welded joints of X5CrNi18-10 stainless steel
(Elsevier, 2019)
This paper considers the influence of nitrogen in the shielding gas during TIG welding as well as the influence of a welding current level on the resistance to pitting corrosion and intergranular corrosion in welded joints ...
Nanoporous Network Channels from Self-Assembled Triblock Copolymer Supramolecules
(Wiley-V C H Verlag Gmbh, Weinheim, 2011)
Supramolecular complexes of a poly(tert-butoxystyrene)-block-polystyrene-block-poly(4-vinylpyridine) triblock copolymers and less than stoichiometric amounts of pentadecylphenol (PDP) are shown to self-assemble into a ...
Synthesis and characterization of spherically-shaped CaO/gamma-Al2O3 catalyst and its application in biodiesel production
(Oxford : Pergamon-Elsevier Science Ltd, 2017)
Loading CaO onto spherically-shaped gamma-Al2O3 support was applied for the preparation of a cost-effective and environmentally-friendly heterogeneous catalyst for biodiesel production. Physico-chemical, textural and ...