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Pt based anode catalysts for direct ethanol fuel cells
(2003)
In the present work several Pt-based anode catalysts supported on carbon XC-72R were prepared with a novel method and characterized by means of XRD, TEM and XPS analysis. It was found that all these catalysts are consisted ...
Direct methanol fuel cells: Methanol crossover and its influence on single DMFC performance
(2004)
In the present investigation, the methanol crossover rate through Nafion((R))-115 membrane at different temperatures and different concentrations had been investigated in a fuel cell test apparatus by using gas chromatography ...
The effect of nano-sized Al2O3 and CO2O3 addition on the properties of fluorite-type ceria-based oxide composite electrolytes for SOFC applications
(2011)
The present work focuses on the influence of nano-sized Al2O3 and Co2O3 addition on the microstructure, mechanical and electrical properties of the solid state compositions Ce0.8Gd0.2O2-δ, Ce0.8Sm0.2O2-δ, Ce0.8Sm0.1Nd0.1O2-δ ...
Electrodes for solid electrolyte sensors for the measurement of CO and H-2 content in air
(2013)
Using a test-tube made of yttria-stabilized zirconia (YSZ) as a measuring cell, different simple oxides MexOy (M = Zn, Sn, Cr, In), complex oxides with perovskite structure (La0.8Sr0.2CrO3 and La0.6Sr0.4MnO3) and silver ...
Influence of sintering additives of transition metals on the properties of gadolinium-doped barium cerate
(2008)
In the present work the effect of MOx (where M =Cu, Ni, Zn, Fe, Co, Ti) addition on the densification behavior and electrical conductivity of BaCe(0.9)d(0.1)O(3-delta) ceramics is investigated. It was found that the small ...
Effects of seeding on large crystal growth of NaX zeolite by continuous crystallisation
(2005)
The problem with zeolite crystals synthesized by conventional method is that they are extremely small of two to eight microns, To better define the structure of zeolite, scientist need to grow crystal that are 100 to 1000 ...
Direct methanol fuel cells: The influence of methanol on the reduction of oxygen over Pt/C catalysts with different particle sizes
(2005)
Two Pt/C catalysts with different particle sizes (Pt/C: 2.5 nm, Pt/C-700Ar: 5.1 nm) were investigated by applying a half-cell configuration - rotating disk electrode (RDE) technique in H2SO4 aqueous solutions in the absence ...
Application of Solid oxide proton-conducting electrolytes for amperometric analysis of hydrogen in H-2+N-2+H2O gas mixtures
(2014)
Amperometric hydrogen sensors based on proton-conducting solid electrolytes of La0.95Sr0.05YO3, CaTi0.95Sc0.05O3 and CaZr0.9Sc0.1O3 compositions are prepared and investigated in the present work. The influence of the sensor ...
Methane catalytic and electrocatalytic combustion over perovskite type oxides deposited on YSZ
(1998)
The catalytic and the electrocatalytic behavior of La0.6Sr0.4Co0.8Fe0.2O3 Perovskite type oxide deposited on Yttria Stabilized Zirconia (YSZ) in the form of thin porous films, was studied during the reaction of methane ...
The importance of the fuel choice on the efficiency of a solid oxide fuel cell system
(2003)
A simplified model has been formulated in order to easily and adequately determines the efficiency of a solid oxide fuel cell (SOFC) stack system, independently on the fuel choice. Simple analytical formulas for the ...