Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/106399
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.creator | D. S. Falcão | |
dc.creator | J. P. Pereira | |
dc.creator | C. M. Rangel | |
dc.creator | A. M. F. R. Pinto | |
dc.date.accessioned | 2022-09-11T15:30:29Z | - |
dc.date.available | 2022-09-11T15:30:29Z | - |
dc.date.issued | 2015 | |
dc.identifier.issn | 0360-3199 | |
dc.identifier.other | sigarra:105715 | |
dc.identifier.uri | https://hdl.handle.net/10216/106399 | - |
dc.description.abstract | Due to the growing interest on miniaturization for application on portable devices, the Micro Direct Methanol Fuel Cells (Micro-DMFC) proved to have great benefits. Passive fuel cells have extra advantages leading to less complex and cheaper systems. In the present work, an experimental study on the performance of a passive Micro-DMFC with an active area of 2.25 cm(2) working at ambient conditions is described. Several commercially available materials for Membrane Electrode Assembly (MEA) are tested including materials with low platinum content to achieve lower prices. The effect of methanol concentration on the cell performance is evaluated. The performance is compared with the one obtained using an active Micro-DMFC with the same active area. A optimized design is 'proposed corresponding to a maximum power density, 19.2 mW/cm(2), obtained using a Nafion 117 membrane, 3 mg/cm(2) Pt Ru and 0.5 mg/cm2 Pt as, respectively, anode and cathode catalyst loading, carbon paper as anode gas diffusion layer (GDL) and Sigracet carbon paper with micro porous layer (MPL) as cathode GDL at methanol feed concentration of 3 M. This result higher than the optimal power obtained with the active Micro-DMFC clearly demonstrates that membranes with low catalyst content could be used in passive MicroDMFC with success. This is an important result bearing in mind the use of micro-DMFCs in portable applications. Copyright | |
dc.language.iso | eng | |
dc.relation | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/EQU-FTT/112475/2009/MICROPILHAS - Miniaturização de Células de Combustível de Metanol Directo: design, modelação e optimização/MICROPILHAS | |
dc.rights | restrictedAccess | |
dc.subject | Engenharia química | |
dc.subject | Chemical engineering | |
dc.title | Development and performance analysis of a metallic passive micro-direct methanol fuel cell for portable applications | |
dc.type | Artigo em Revista Científica Internacional | |
dc.contributor.uporto | Faculdade de Engenharia | |
dc.identifier.doi | 10.1016/j.ijhydene.2015.01.034 | |
dc.identifier.authenticus | P-00G-3VK | |
dc.subject.fos | Ciências da engenharia e tecnologias::Engenharia química | |
dc.subject.fos | Engineering and technology::Chemical engineering | |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
105715.pdf Restricted Access | Artigo Original Publicado | 720.02 kB | Adobe PDF | Request a copy from the Author(s) |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.