Αναζήτηση
Αποτελέσματα 11-20 από 21
Performance comparison of low-temperature direct alcohol fuel cells with different anode catalysts
(2004)
Low-temperature polymer electrolyte membrane fuel cells directly fed by methanol and ethanol were investigated employing carbon supported Pt, PtSn and PtRu as anode catalysts, respectively. Employing Pt/C as anode catalyst, ...
Direct methanol fuel cells: The effect of electrode fabrication procedure on MEAs structural properties and cell performance
(2005)
In the present paper, the effect of electrode preparation procedure on the structural properties of membrane electrode assembly (MEA) and consequently on the performance of direct methanol fuel cells (DMFCs) was investigated. ...
Influence of Cu on the properties of gadolinium-doped barium cerate
(2008)
In the present work the effect of copper oxide addition on the densification behavior and electrical conductivity of BaCe1-xGdxO3-delta (BCG) type ceramics is investigated. Small addition (1 mol%) of this sintering additive ...
Thermodynamic analysis of a hydrogen fed solid oxide fuel cell based on a proton conductor
(2001)
In the present investigation, the thermodynamic analysis of a solid oxide fuel cell based on protonic electrolyte (SOFC(H(+))) and fed with hydrogen is performed. The influence of such parameters as hydrogen purity, air ...
High temperature electrolyzer based on solid oxide co-ionic electrolyte: A theoretical model
(2007)
In the present work a theoretical model of a solid oxide electrolyzer based on an electrolyte having both oxygen ion and proton conductivity is considered. The main parameters of the electrolytic process and an electrolyzer ...
Investigation of the protonic conduction in Sm doped BaCeO3
(2008)
In the present work the structural and electrical properties of samarium-doped barium cerate perovskites of BaCe1-xSmxO3-delta formula (with x=0-0.2), prepared by following the solid state reaction method, are investigated. ...
Ethanol/water mixture permeation through a Nafion (R) based membrane electrode assembly
(2007)
In the present work, the permeation behavior of ethanol/water mixtures through a Nafion((R))- 115 based membrane electrode assembly (MEA) has been investigated. The crossover measurements were carried out in a single fuel ...
Novel composite solid state electrolytes on the base of BaCeO3 and CeO2 for intermediate temperature electrochemical devices
(2013)
In the present work, nano-sized powders of (1-x)Ce0.8Sm0.2O2-delta-xBaCe(0.8)Sm(0.2)O(3-delta) (x = 0, 0.3, 0.5, 0.7 and 1) were obtained by solution combustion synthesis (self-combustion synthesis, SCS) method of nitrate ...
Conductivity of Gd-doped BaCeO3 protonic conductor in H-2-H2O-O-2 atmospheres
(2014)
In the present investigation, a radically new and simple method of evaluation of the proton conductivity is proposed. This method is based on the conductivity measurement of ceramic materials depending on the oxygen partial ...
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 ...