RT Journal Article
T1 Estimation of the membrane methanol diffusion coefficient from open circuit voltage measurements in a direct methanol fuel cell
A1 Barragán García, Vicenta María
A1 Heinzel, A.
AB Direct methanol fuel cells (DMFCs) are attractive for several applications, however, at present, methanol crossover from the anode to the cathode appears to be a major limitation. For this reason, as one of the alternatives, membrane technology tries to obtain new methanol-impermeable polymer electrolytes. In this sense, it would be interesting to develop easy methods to check the new materials in relation to the methanol transport. In this work, a simple model is presented which permits to estimate easily the methanol diffusion coefficient of the membrane of a DMFC from open circuit voltage (OCV) measurements. The model has been checked in a DMFC using Nafion membranes as electrolyte.
PB Elsevier Science BV
SN 0378-7753
YR 2002
FD 2002-01-15
LK https://hdl.handle.net/20.500.14352/58422
UL https://hdl.handle.net/20.500.14352/58422
LA eng
NO �© 2002 Elsevier. V.M.B. wishes to thank the Ministry of Education and Culture of Spain for FPU granting and also the staff of the Fraunhofer Institut für Solar Energiesysteme for their kind support during her stay here
NO Ministry of Education and Culture of Spain
DS Docta Complutense
RD 6 abr 2025