Listar por autor "Stergiopoulos, V."
Mostrando ítems 1-5 de 5
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Degradation of perfluorinated sulfonic acid films: An in-situ infrared spectro-electrochemical study
Fang, X.; Shen, P. K.; Song, S.; Stergiopoulos, V.; Tsiakaras, P. (2009)The in-situ Fourier transform infrared (FTIR) spectro-electrochemical method was used to evaluate the degradation mechanism of perfluorinated sulfonic acid (PFSA) polymer for the first time. The effect of H 2O 2 concentration ... -
Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution
Andreadis, G.; Stergiopoulos, V.; Song, S.; Tsiakaras, P. (2010)In the present work the results of the continuous and on-line product analysis during a Direct Ethanol Polymer Electrolyte Membrane Fuel Cell operation (DE-PEMFC) are presented. The effect of both cell discharge current ... -
Direct methanol fuel cells: The effect of electrode fabrication procedure on MEAs structural properties and cell performance
Song, S. Q.; Liang, Z. X.; Zhou, W. J.; Sun, G. Q.; Xin, Q.; Stergiopoulos, V.; Tsiakaras, P. (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. ... -
The effect of methanol and ethanol cross-over on the performance of PtRu/C-based anode DAFCs
Song, S.; Zhou, W.; Liang, Z.; Cai, R.; Sun, G.; Xin, Q.; Stergiopoulos, V.; Tsiakaras, P. (2005)In the present work, the cross-over rates of methanol and ethanol, respectively, through Nafion®-115 membranes at different temperatures and different concentrations have been measured and compared. The changes of Nafion®-115 ... -
Ethanol/water mixture permeation through a Nafion (R) based membrane electrode assembly
Kontou, S.; Stergiopoulos, V.; Song, S.; Tsiakaras, P. (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 ...