Oxygen diffusion coefficient and solubility in a new proton exchange membrane

The electrochemical monitoring technique is used to measure the solubility and the diffusion coefficient of oxygen in a new proton exchange membrane that is being developed by Cape Cod Research, Inc., Using the method of least squares, the data were fit to an analytical solution of Fick's secon...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Journal of the Electrochemical Society 2000-03, Vol.147 (3), p.980-983
Hauptverfasser:	HAUG, A. T, WHITE, R. E
Format:	Artikel
Sprache:	eng
Schlagworte:	30 DIRECT ENERGY CONVERSION Chemistry DIFFUSION Electrochemistry Exact sciences and technology FICK LAWS General and physical chemistry LEAST SQUARE FIT MEMBRANES OXYGEN PROTON EXCHANGE MEMBRANE FUEL CELLS SOLUBILITY Study of interfaces Transport phenomena
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The electrochemical monitoring technique is used to measure the solubility and the diffusion coefficient of oxygen in a new proton exchange membrane that is being developed by Cape Cod Research, Inc., Using the method of least squares, the data were fit to an analytical solution of Fick's second law to determine D and c{sub 0}. Values of 0.40 x 10{sup {minus}6}cm{sup 2}/s and 4.98 x 10{sup {minus}6} mol/cm{sup 3} were obtained for the diffusion coefficient and solubility, respectively, of the Cape Cod membrane. These values are significantly less than those of Nafion 117 tested under identical conditions.
ISSN:	0013-4651 1945-7111
DOI:	10.1149/1.1393300