Characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application
The preparation and characterization of a monolithic mesoporous carbon structure, which could be used as diffusion layer in PEM and DMPEM micro fuel cells, is described. Several characteristics of the monolithic carbon were studied, such as specific surface area, pore size distribution, bulk electri...
Guardado en:
| Autores principales: | , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_13871811_v155_n_p47_Thomas |
| Aporte de: |
| id |
todo:paper_13871811_v155_n_p47_Thomas |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_13871811_v155_n_p47_Thomas2023-10-03T16:12:27Z Characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application Thomas, Y.R.J. Bruno, M.M. Corti, H.R. Contact resistance Diffusion layer Mesoporous carbon Micro fuel cells Permeability Aqueous methanol Carbon A Carbon cloths Carbon paper Diffusion layers Direct methanol micro fuel cell Electrical resistivity Graphite plates Mesoporous carbon Mesoporous carbon structures Mesostructured Methanol solution Microfuel cell PEM fuel cell Contact resistance Diffusion Electric conductivity Fuel cells Gas fuel purification Mechanical permeability Mesoporous materials Methanol Carbon The preparation and characterization of a monolithic mesoporous carbon structure, which could be used as diffusion layer in PEM and DMPEM micro fuel cells, is described. Several characteristics of the monolithic carbon were studied, such as specific surface area, pore size distribution, bulk electrical resistivity, contact resistance with graphite plates, along with the wettability, imbibition and permeability of methanol aqueous solution. These properties were compared to those reported for commercial carbon paper and carbon cloth materials commonly used as diffusion layers in PEM fuel cells. The electrical properties of the mesoporous carbon meet the requirements to be employed as diffusion layers in PEM stacks assembled at pressures above 15 bar. The rapid spreading and imbibition of concentrated methanol solutions in the mesoporous carbon, as well as the permeability of the aqueous methanol through it, also make this mesostructured carbon a possible candidate for diffusion layer and catalyst support in passive direct methanol micro fuel cells. © 2011 Elsevier Inc. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_13871811_v155_n_p47_Thomas |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Contact resistance Diffusion layer Mesoporous carbon Micro fuel cells Permeability Aqueous methanol Carbon A Carbon cloths Carbon paper Diffusion layers Direct methanol micro fuel cell Electrical resistivity Graphite plates Mesoporous carbon Mesoporous carbon structures Mesostructured Methanol solution Microfuel cell PEM fuel cell Contact resistance Diffusion Electric conductivity Fuel cells Gas fuel purification Mechanical permeability Mesoporous materials Methanol Carbon |
| spellingShingle |
Contact resistance Diffusion layer Mesoporous carbon Micro fuel cells Permeability Aqueous methanol Carbon A Carbon cloths Carbon paper Diffusion layers Direct methanol micro fuel cell Electrical resistivity Graphite plates Mesoporous carbon Mesoporous carbon structures Mesostructured Methanol solution Microfuel cell PEM fuel cell Contact resistance Diffusion Electric conductivity Fuel cells Gas fuel purification Mechanical permeability Mesoporous materials Methanol Carbon Thomas, Y.R.J. Bruno, M.M. Corti, H.R. Characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application |
| topic_facet |
Contact resistance Diffusion layer Mesoporous carbon Micro fuel cells Permeability Aqueous methanol Carbon A Carbon cloths Carbon paper Diffusion layers Direct methanol micro fuel cell Electrical resistivity Graphite plates Mesoporous carbon Mesoporous carbon structures Mesostructured Methanol solution Microfuel cell PEM fuel cell Contact resistance Diffusion Electric conductivity Fuel cells Gas fuel purification Mechanical permeability Mesoporous materials Methanol Carbon |
| description |
The preparation and characterization of a monolithic mesoporous carbon structure, which could be used as diffusion layer in PEM and DMPEM micro fuel cells, is described. Several characteristics of the monolithic carbon were studied, such as specific surface area, pore size distribution, bulk electrical resistivity, contact resistance with graphite plates, along with the wettability, imbibition and permeability of methanol aqueous solution. These properties were compared to those reported for commercial carbon paper and carbon cloth materials commonly used as diffusion layers in PEM fuel cells. The electrical properties of the mesoporous carbon meet the requirements to be employed as diffusion layers in PEM stacks assembled at pressures above 15 bar. The rapid spreading and imbibition of concentrated methanol solutions in the mesoporous carbon, as well as the permeability of the aqueous methanol through it, also make this mesostructured carbon a possible candidate for diffusion layer and catalyst support in passive direct methanol micro fuel cells. © 2011 Elsevier Inc. All rights reserved. |
| format |
JOUR |
| author |
Thomas, Y.R.J. Bruno, M.M. Corti, H.R. |
| author_facet |
Thomas, Y.R.J. Bruno, M.M. Corti, H.R. |
| author_sort |
Thomas, Y.R.J. |
| title |
Characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application |
| title_short |
Characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application |
| title_full |
Characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application |
| title_fullStr |
Characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application |
| title_full_unstemmed |
Characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application |
| title_sort |
characterization of a monolithic mesoporous carbon as diffusion layer for micro fuel cells application |
| url |
http://hdl.handle.net/20.500.12110/paper_13871811_v155_n_p47_Thomas |
| work_keys_str_mv |
AT thomasyrj characterizationofamonolithicmesoporouscarbonasdiffusionlayerformicrofuelcellsapplication AT brunomm characterizationofamonolithicmesoporouscarbonasdiffusionlayerformicrofuelcellsapplication AT cortihr characterizationofamonolithicmesoporouscarbonasdiffusionlayerformicrofuelcellsapplication |
| _version_ |
1782029349675859968 |