{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,13]],"date-time":"2025-09-13T16:22:06Z","timestamp":1757780526930,"version":"3.41.2"},"reference-count":42,"publisher":"ASME International","issue":"1","content-domain":{"domain":["asmedigitalcollection.asme.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2011,2,1]]},"abstract":"<jats:p>The direct methanol fuel cell (DMFC) is a promising power source for micro- and various portable electronic devices (mobile phones, PDAs, laptops, and multimedia equipment) with the advantages of easy fuel storage, no need for humidification, and simple design. However, a number of issues need to be resolved before DMFC commercialization, such as the methanol crossover and water crossover, which must be minimized in portable DMFCs. In the present work, a detailed experimental study on the performance of an \u201cin-house\u201d developed DMFC with 25\u2002cm2 of active membrane area, working near the ambient conditions is described. The influence on the DMFC performance of the methanol concentration in the fuel feed solution and of both anode and cathode flowrates was studied. Tailored membrane electrode assemblies (MEAs) were designed in order to select optimal working conditions. Different structures and combinations of gas diffusion layers (GDLs) were tested. Under the operating conditions studied it was shown that, as expected, the cell performance significantly increases with the introduction of gas diffusion layers and that carbon cloth is more efficient than carbon paper both for the anode and cathode GDLs. The results reported allow the setup of tailored MEAs enabling the cell operation at high methanol concentrations (high power densities) without sacrificing performance (i.e., achieving low methanol crossover values). The influence of the different parameters on the cell performance is explained under the light of the predictions from a previously developed one-dimensional model, coupling heat and mass transfer effects. The main gain of this work is to report DMFC detailed experimental data at near ambient temperature which are insufficient in literature. This operating condition is of special interest in portable applications.<\/jats:p>","DOI":"10.1115\/1.4002311","type":"journal-article","created":{"date-parts":[[2010,11,6]],"date-time":"2010-11-06T00:16:54Z","timestamp":1289002614000},"update-policy":"https:\/\/doi.org\/10.1115\/crossmarkpolicy-asme","source":"Crossref","is-referenced-by-count":7,"title":["Performance of a Direct Methanol Fuel Cell Operating Close to Room Temperature"],"prefix":"10.1115","volume":"8","author":[{"given":"V. B.","family":"Oliveira","sequence":"first","affiliation":[{"name":"Departamento de Engenharia Qu\u00edmica, Centro de Estudos de Fen\u00f3menos de Transporte, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]},{"given":"C. M.","family":"Rangel","sequence":"additional","affiliation":[{"name":"Instituto Nacional de Energia e Geologia, Fuel Cells and Hydrogen Estrada do Pa\u00e7o do Lumiar, 1649-038 Lisboa, Portugal"}]},{"given":"A. M. F. R.","family":"Pinto","sequence":"additional","affiliation":[{"name":"Departamento de Engenharia Qu\u00edmica, Centro de Estudos de Fen\u00f3menos de Transporte, Faculdade de Engenharia da Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal"}]}],"member":"33","published-online":{"date-parts":[[2010,11,3]]},"reference":[{"first-page":"53","volume-title":"Direct Methanol Fuel Cells: From a Twentieth Century Electrochemist\u2019s Dream to a Twenty-First Century Emerging Technology. Modern Aspects of Electrochemistry","author":"Lamy","key":"2019110715544349100_c1"},{"key":"2019110715544349100_c2","doi-asserted-by":"publisher","first-page":"3719","DOI":"10.1016\/S0013-4686(98)00130-3","article-title":"Optimization of Operating Parameters of a Direct Methanol Fuel Cell and Physico-Chemical Investigation of Catalyst-Electrolyte Interface","volume":"43","author":"Arico","journal-title":"Electrochim. 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