hydrothermal synthesis and characterization of some polycrystalline iron oxides

... Hydrothermal synthesis and characterization of some polycrystalline a -iron oxides Lucian Diamandescu*, Doina Mihaila-Tarabasanu, Nicoleta Popescu-Pogrion,Alina ... potential applications. # 1999 Elsevier Science Ltd and Techna S.r.l. All rights reserved.Keywords: a -Iron oxides; Hydrothermal synthesis; Polycrystalline; BTEM/MoÈssbauer1. IntroductionBesides ... the preparation of soft ferrites (Mn±Zn ferrite) withgood results. The catalyser obtained with E oxideTable 1Morphological characteristics of hydrothermally prepared a -iron oxides OxidetypePrecursor...

hydrothermal synthesis and characterization of - feooh and fe2o3 uniform nanocrystallines

... size and shape of iron oxides nanocrystallines. Porous iron oxides nanoparticles may provide some immediate advantagesover their solid counterparts because of their relatively low den-sities and ... Journal of Alloys and Compounds 433 (2007) 216–220 Hydrothermal synthesis and characterization of ␣-FeOOH and ␣-Fe2O3uniform nanocrystallinesXiaohe ... successfully employed for the syn-thesis of iron oxides nanocrystallines. As is well known, theproperties of iron oxides nanocrystallines sensitively depend ontheir size and shape. In order to improve...

hydrothermal synthesis and characterization of self - assembled h - wo3

... of Alloys and Compounds 475 (2009) 446–451Contents lists available at ScienceDirectJournal of Alloys and Compoundsjournal homepage: www.elsevier.com/locate/jallcom Hydrothermal synthesis and ... directed synthesis, chemical vapor deposition, solvo- and hydrothermal reaction, solution-based colloidal approach, and sonochemistryprocesses. Among them, solvo- and hydrothermal processes offersigniﬁcant ... morphology of WO3nanowire and/ or urchin-like structures.In this paper, the authors report on the synthesis of 1D h-WO3nanostructure using EDTA salt solutions and sodium sulfatethrough a simple hydrothermal...

hydrothermal synthesis and characterization of tio2 nanorod arrays on glass substrates

... FE-SEM images of TNAs grown on PT-substrate at an annealing temperature of 700 8C and at a hydrothermal growth temperature of 160 8C and growth time of 3 h. (a)PT-substrate; (b) top view of TNAs; ... view of TNAs.Fig. 6. Diameter distribution of TiO2nanorods grown on PT-substrate at anannealing temperature of 700 8C and at a hydrothermal growth temperature of 160 8C and with growth time of ... annealingtemperature of 700 8C and at a hydrothermal growth temperature of 160 8C and with growth time of 3 h. (a) TEM image and the associated selected area electrondiffraction of TiO2nanorods;...

synthesis and characterization of wo3 nanostructures prepared by an aged-hydrothermal method

... scale synthesis of WS2nanotubes from WO3nanorods prepared by a hydrothermal route. Solid State Sci 2005;7:67–72.[19] Ha J-H, Muralidharan P, Kyung Kim Do. Hydrothermal synthesis and characterization ... M,Alonso-Nuñez G. Synthesis and Structural Characterization of Mo–Ni–W oxides nanostructures. J Nanosci Nanotechnol2008;8(6):2983–9.[23] Solarska R, Alexander BD, Augustynski J. Electrochromic and structural ... process [14] and by ultrasonic spray and laserpyrolysis techniques [15–17]. Recently, Therese et al. [18] and Ha et al. [19] reported the synthesis of WO3nanostructures byfollowing a hydrothermal...

Tài liệu Báo cáo khoa học: Specific targeting of a DNA-alkylating reagent to mitochondria Synthesis and characterization of [4-((11aS)-7-methoxy-1,2,3,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-on-8-oxy)butyl]-triphenylphosphonium iodide doc

... UK;2Department of Chemistry, University of Otago, Dunedin, New Zealand;3Department of Neurology, Medical School, University of Newcastle upon Tyne, UKThe selective manipulation of the expression and ... the vicinity of mtDNA with the resultant binding and selective alkyla-tion leading to a depletion of mtDNA in intact cells(Fig. 1). Here we report the synthesis and characterization of a novel ... mitochondria and cells. Inaddition to facilitating the development of antigenomictherapies, such a reagent might also be useful in investi-gating the rate of turnover of mtDNA and in the derivationof...

Báo cáo khoa học: Synthesis and characterization of a new and radiolabeled high-afﬁnity substrate for H+/peptide cotransporters pdf

... parameters and transport characteristics of Bip-[3H]Pro.Results and Discussion Synthesis, chemical characterization and stability of Bip-ProFigure 1 shows the structure (Fig. 1A) and the synthe-sis ... a competitive mode of action.Uptake of Bip-[3H]Pro by SKPT cellsAfter characterization of Bip-Pro as a very high-afﬁn-ity and enzymatically stable substrate of PEPT1 and PEPT2, the compound ... Ala-4-nitroanilide and Lys(4-nitrobenzyloxycarbonyl)-Val were synthesized accord-ing to peptide synthesis standard procedures [18,29]. Allother chemicals were of analytical grade. Synthesis of Bip-Pro and...

Synthesis and characterization of silicon nanowires using tin catalyst for solar cells application

... Synthesis and characterization of silicon nanowires using tin catalyst for solarcells applicationMinsung Jeon⁎, Koichi KamisakoDepartment of Electronic and Information Engineering, ... property of SiNWs, aFE-SEM observation was carried out after synthesis of SiNWs. Fig. 1(b) shows the top-view (15° tilted) and cross-section (see inset of Fig. 1(b)) FE-SEM images of the SiNWsfabricated ... at λb 700 nm [20]. The difference of the reﬂectancemight be the effect of synthesis conditions, such as thickness of metal ﬁlm and SiH4gasﬂow. The reduction of reﬂectance is very helpful to...

Synthesis and characterization of semiconducting nanowires for gas sensing

... investigation of the termination of the nanowire lateral sides and apex. Electron diffraction (ED) and analysis of zero-order and higher-order Laue-zones allowsprecise determination of unit cell and space ... nanowire, (d) STEM-HAADF image of a nanowire, and (e) linescan of theHAADF signal (solid line) and numerical ﬁt of the shape of the nanowire (dashed line).As both composition and phase can be considered ... in the ﬁeld of bio-nanotechnology, sensitive DNA and protein detection are presently under investigation [15].This paper summarizes the preparation and characterization of tin, zinc and indium...

Báo cáo khoa học: Synthesis and characterization of Pi4, a scorpion toxin from Pandinus imperator that acts on K+ channels doc

... thesidechains of Glu332 of each rat Kv1.2 a-subunit(Kv1.2 channel is composed of four a-subunits) and Arg10, Arg19, Lys30 and Lys33 of Pi4. The Lys26 sidechain of Pi4 enters into the ion channel pore and ... binding of [125I]apaminwithout any other ligand, and B is the binding in the presence of theindicated concentrations of competitor. Abscissa axis is the logarithm of the molar concentration of ... atoms of the P-domainselectivity ﬁlter. Residue Tyr35 of Pi4 is involved in ahydrophobic cluster of aromatic residues consisting of Trp344, from one of the four Kv1.2 a-subunits, and Trp345and...

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