Now showing items 1-10 of 579
New methodology for pH measurements in fuel ethanol using glass electrode
Studies carried out with glass electrode in anhydrous ethanol and ethanol-water solutions for measuring pH values have shown that this parameter depends on the solution composition, the contact time with the solution, the ...
Development of a passive mini-direct ethanol fuel cell : effect of mea assembly parameters by hot pressure.
This paper presents preliminary results on the design, construction and evaluation of a passive mini direct ethanol fuel cell (DEFC), capillary fed with 2 mol l-1 aqueous ethanol, at a rate of 2.03 μL min-1, and air ...
The Effects Of Blending Diesel, Ethanol, And Biodiesel
(Taylor & Francis IncPhiladelphia, 2016)
Glycerol and Ethanol Oxidation in Alkaline Medium Using PtCu/C Electrocatalysts
The performance of platinum-copper electrocatalysts synthesized in different ratios (100:0, 90:10, 70:30, 50:50, and 0:100), using a borohydride reduction method for electrochemical oxidation of different fuels, was evaluated ...
Determination of sulfate in ethanol fuel using an electrode chemically modified with polypyrrole by flow injection analysis
In this work, an electrode chemically modified with polypyrrole (PCME) was employed for determination of sulfate in ethanol fuel using a FIA system. The PCME was prepared by polymerization of pyrrole at a glassy carbon ...
Solid-phase extraction of metal ions from fuel ethanol with a nanostructured adsorbent
This work describes the synthesis and characterization of a new octakis[3-(2,2'-dipyridylamine)propyl]octasilsesquioxane (T8-Pr-DPA), and a study of the metal ion preconcentration in fuel ethanol. Batch and column experiments ...
Competitiveness of Brazilian sugarcane ethanol compared to US corn ethanol
(ELSEVIER SCI LTD, 2010)
Corn ethanol produced in the US and sugarcane ethanol produced in Brazil are the world`s leading sources of biofuel. Current US biofuel policies create both incentives and constraints for the import of ethanol from Brazil ...
Atmospheric impacts of the life cycle emissions of fuel ethanol in Brazil: based on chemical exergy
(ELSEVIER SCI LTD, 2010)
An assessment is made of the atmospheric emissions from the life cycle of fuel ethanol coupled with the cogeneration of electricity from sugarcane in Brazil. The total exergy loss from the most quantitative relevant ...
Ethanol electro-oxidation in an alkaline medium using Pd/C, Au/C and PdAu/C electrocatalysts prepared by electron beam irradiation
Carbon-supported Pd, Au and bimetallic PdAu (Pd:Au 90:10, 50:50 and 30:70 atomic ratios) electrocatalysts were prepared using electron beam irradiation. The obtained materials were characterized by energy dispersive X-ray ...
Investigation of a Pt3Sn/C Electro-Catalyst in a Direct Ethanol Fuel Cell Operating at Low Temperatures for Portable Applications
(ELECTROCHEMICAL SCIENCE GROUPBELGRADE, 2012)
A 20% Pt3Sn/C catalyst was prepared by reduction with formic acid and used in a direct ethanol fuel cell at low temperatures. The electro-catalytic activity of this bimetallic catalyst was compared to that of a commercial ...