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Kinetics of sunflower oil methanolysis catalyzed by calcium oxide
(Elsevier, 2009)
The methanolysis of sunflower oil was studied in the presence of CaO previously calcined at various temperatures and the optimal temperature for CaO calcination was determined. The sigmoidal process kinetics was explained ...
Optimization of processing parameters for preparation of LaNiO3 thin films from the citrate precursors
(Elsevier Sci Ltd, Oxford, 2007)
Lanthanum nickel oxide (LaNiO3) is an electrically conductive ceramics, which has a potential use as electrode for ferroelectric thin films, multilayer actuators and many other electronic devices. In this work, LaNiO3 thin ...
Formation of nanocrystalline transition-metal ferrites inside a silica matrix
(Wiley, Hoboken, 2002)
Nanocrystalline transition-metal ferrites were synthesized inside an amorphous silica matrix by the sol-gel method. The formation of spinel ferrites began above 400degreesC, giving fine particles of about 10 nm at 800degreesC. ...
Rietveld refinement of a chabazite-like aluminophosphate containing a [Ni(1,2-diaminoethane)(2)O-2](2-) complex bridge
(Elsevier, Amsterdam, 2001)
The crystal structure of a novel Ni-containing precursor to the molecular sieve AlPO4-34 (CHA framework type) has been determined in its as-synthesized form using high-resolution synchrotron powder diffraction data. One ...
Governing factors for motor oil removal from water with different sorption materials
(Elsevier B.V., 2008)
This paper has been focused on the sorbent efficiency for motor oil removal from water. Two types of sorbents were investigated: organic and inorganic. Natural wool fibers (NWFs) and recycled-wool-based nonwoven material ...
Preparation and characterization TiOx-Pt/C catalyst for hydrogen oxidation reaction
(Royal Soc Chemistry, Cambridge, 2009)
The hydrogen oxidation reaction (HOR) was studied at the home made TiOx-Pt/C nanocatalysts in 0.5 mol dm(-3) HClO4 at 25 degrees C. Pt/C catalyst was first synthesized by modified ethylene glycol method (EG) on commercially ...
Flow boiling of R134a and ammonia in a plate heat exchanger
(Elsevier Ltd, 2008)
This paper presents experimental results on evaporation heat transfer for flow boiling of ammonia and of R134a in a chevron-pattern corrugated plate heat exchanger (PHE). The measurements enable the evaluation of a quasi-local ...
The effects of the pause to pulse ratio in the regime of pulsating overpotential on the formation of honeycomb-like structures
(Elsevier Science Inc, New York, 2009)
The formation of honeycomb-like structures in the pulsating overpotential (PO) regime was examined by scanning electron microscopy (SEM). The honeycomb-like structures obtained with a square-wave PO of different pause to ...
The effect of agitation intensity on alkali-catalyzed methanolysis of sunflower oil
(Elsevier, 2007)
The sunflower oil methanolysis was studied in a stirred reactor at different agitation speeds. The measurements of drop size, drop size distribution and the conversion degree demonstrate the effects of the agitation speed ...
Chevron defect at the intersection of grain boundaries with free surfaces in Au
(American Physical Society, 2002)
We have identified a new defect at the intersection between grain boundaries and surfaces in Au using
atomic resolution transmission electron microscopy. At the junction line of 90
h110i tilt grain boundaries
of ...