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Приказ резултата 151-160 од 183
A kinetic study of the thermal degradation of ammonium species inside a 3D zincophosphate
(Elsevier Science Bv, Amsterdam, 2006)
Ammonium ions remain inside the 3D zincophosphate framework after the hydrothermal crystallization. These species in co-operation with sodium cations exert a specific templating role in the formation of the open-framework ...
Preparation of a-TCP cements from calcium deficient hydroxyapatite obtained by hydrothermal method
(Trans Tech Publications Ltd, Durnten-Zurich, 2006)
In this paper the synthesis of bioactive cement based on al-Ca-3(PO4)(2) (a-TCP) and calcium deficient hydroxyapatite (CDHAp), obtained by hydrothermal method from CaCl2, EDTA, NaH(2)PO(4)(.)12H(2)O and urea at 160 degrees ...
Investigations of cell immobilization in alginate: rheological and electrostatic extrusion studies
(Wiley, Hoboken, 2006)
In this study, the process of electrostatic extrusion as a method for cell immobilization was investigated. We have assessed the effects of concentrations of yeast cells (as a model cell type) and Na alginate on the size ...
Uticaj pratećih komponenata vlakana konoplje na njihovu električnu otpornost / Influence of accompanying substances of hemp fibres on their electric resistance
(Savez hemičara i tehnologa Srbije, 2006)
U cilju iznalaženja zadovoljavajućeg postupka modifikovanja vlakana konoplje u ovom radu su prikazane zavisnosti između hemijskog sastava, finoće i električne otpornosti. Prema proceduri za određivanje hemijskog sastava ...
An evidence for a chain to network transformation during the microwave hydrothermal crystallization of an open-framework zinc terephthalate
(Springer, Dordrecht, 2006)
A 3-D open-framework and a chain-structured zinc terephthalate are obtained by hydrothermal crystallization under microwave heating at 180 degrees C. The study shows that these structures have rather similar principal ...
Microstructure and pitting corrosion resistance of annealed duplex stainless steel
(Elsevier Ltd, 2006)
The transition from metastable to stable pitting was studied in 0.5 M NaCl water solution for two cast duplex stainless steels under different microstructural conditions achieved by annealing in the range from 900 °C to ...
Structural effects in electrocatalysis: Formic acid oxidation at model and real Pt catalysts
(Trans Tech Publications Ltd, Durnten-Zurich, 2006)
Formic acid oxidation was studied at low-index Pt single crystals (model systems) as well as at the platinum catalyst supported on high area carbon (real catalyst) in HClO4. The Pt single crystals were characterized by ...
On a possible role of dicarboxylate ions in the formation of open-framework metallophosphates
(Croatian Chemical Society, 2006)
Three dicarboxylic acids (oxalic, malonic and terephthalic) were investigated as possible pillars in the formation of metallophosphates with extended structures in the presence of 1,2-diaminopropane (DAP) as a structure-directing ...
Magneli phase titanium oxides as catalyst support - Electrochemical behavior of Ebonex/Pt catalysts
(Journal of New Materials for Electrochemical Systems, 2006)
The impregnation method has been applied to synthesize platinum nanoparticles on Magneli phase titanium oxide powder (Ebonex). Surface area of the Ebonex support was determined by BET technique. Distribution and morphology ...
Modelling of plasma activated CVD of Co-C-O layers in parallel plate reactor
(Elsevier, 2006)
A modelling procedure for Co-C-O layers generated on steel C35 from cobalt(II) acetylacetonate by PACVD is suggested. The investigations were carried out in a parallel plate reactor, under a radio frequency (13.56 MHz) ...