MEA Preparation for Direct Formate/Formic Acid Fuel Cell—Comparison of Palladium Black and Palladium Supported on Activated Carbon Performance on Power Generation in Passive Fuel Cell
Membrane electrode assemblies (MEAs) with palladium catalysts were successfully prepared by using a home-made manual pressing system with Nafion glue application that contributed to a decrease of additional energy consumption. The catalyst coated membranes were prepared with supported palladium on a...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/10/11/355 |
| _version_ | 1797547503087779840 |
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| author | Adrianna Nogalska Andreu Bonet Navarro Ricard Garcia-Valls |
| author_facet | Adrianna Nogalska Andreu Bonet Navarro Ricard Garcia-Valls |
| author_sort | Adrianna Nogalska |
| collection | DOAJ |
| description | Membrane electrode assemblies (MEAs) with palladium catalysts were successfully prepared by using a home-made manual pressing system with Nafion glue application that contributed to a decrease of additional energy consumption. The catalyst coated membranes were prepared with supported palladium on activated carbon (PdC) and unsupported palladium black (PdB) for comparison. The performance of passive, air breathing, functioning under ambient conditions and with low concentration (1 M) formate/formic acid fuel cell was evaluated. Based on polarization curves, the best result was obtained with carbon supported catalyst and HCOOK fuel, achieving 21.01 mW/mg<sub>Pd</sub>. Still, constant current discharge with PdC showed an energy generation efficiency of 14% with HCOOH over 3% with HCOOK caused by lower potassium ion conductivity and its permeability through the proton exchange membrane. The faradic efficiency of conversion in the cell is equal to the overall energy efficiency and makes the cell self-sufficient. |
| first_indexed | 2024-03-10T14:45:00Z |
| format | Article |
| id | doaj.art-9d3d5e9ca45648b4bf859dd3774afa6b |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T14:45:00Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-9d3d5e9ca45648b4bf859dd3774afa6b2023-11-20T21:29:00ZengMDPI AGMembranes2077-03752020-11-01101135510.3390/membranes10110355MEA Preparation for Direct Formate/Formic Acid Fuel Cell—Comparison of Palladium Black and Palladium Supported on Activated Carbon Performance on Power Generation in Passive Fuel CellAdrianna Nogalska0Andreu Bonet Navarro1Ricard Garcia-Valls2Eurecat, Centre Tecnològic de Catalunya, C/Marcel·lí Domingo, 43007 Tarragona, SpainEurecat, Centre Tecnològic de Catalunya, C/Marcel·lí Domingo, 43007 Tarragona, SpainEurecat, Centre Tecnològic de Catalunya, C/Marcel·lí Domingo, 43007 Tarragona, SpainMembrane electrode assemblies (MEAs) with palladium catalysts were successfully prepared by using a home-made manual pressing system with Nafion glue application that contributed to a decrease of additional energy consumption. The catalyst coated membranes were prepared with supported palladium on activated carbon (PdC) and unsupported palladium black (PdB) for comparison. The performance of passive, air breathing, functioning under ambient conditions and with low concentration (1 M) formate/formic acid fuel cell was evaluated. Based on polarization curves, the best result was obtained with carbon supported catalyst and HCOOK fuel, achieving 21.01 mW/mg<sub>Pd</sub>. Still, constant current discharge with PdC showed an energy generation efficiency of 14% with HCOOH over 3% with HCOOK caused by lower potassium ion conductivity and its permeability through the proton exchange membrane. The faradic efficiency of conversion in the cell is equal to the overall energy efficiency and makes the cell self-sufficient.https://www.mdpi.com/2077-0375/10/11/355formate fuel cellformic acid fuel cellpalladium electro-catalystMEAcatalyst coated membrane |
| spellingShingle | Adrianna Nogalska Andreu Bonet Navarro Ricard Garcia-Valls MEA Preparation for Direct Formate/Formic Acid Fuel Cell—Comparison of Palladium Black and Palladium Supported on Activated Carbon Performance on Power Generation in Passive Fuel Cell Membranes formate fuel cell formic acid fuel cell palladium electro-catalyst MEA catalyst coated membrane |
| title | MEA Preparation for Direct Formate/Formic Acid Fuel Cell—Comparison of Palladium Black and Palladium Supported on Activated Carbon Performance on Power Generation in Passive Fuel Cell |
| title_full | MEA Preparation for Direct Formate/Formic Acid Fuel Cell—Comparison of Palladium Black and Palladium Supported on Activated Carbon Performance on Power Generation in Passive Fuel Cell |
| title_fullStr | MEA Preparation for Direct Formate/Formic Acid Fuel Cell—Comparison of Palladium Black and Palladium Supported on Activated Carbon Performance on Power Generation in Passive Fuel Cell |
| title_full_unstemmed | MEA Preparation for Direct Formate/Formic Acid Fuel Cell—Comparison of Palladium Black and Palladium Supported on Activated Carbon Performance on Power Generation in Passive Fuel Cell |
| title_short | MEA Preparation for Direct Formate/Formic Acid Fuel Cell—Comparison of Palladium Black and Palladium Supported on Activated Carbon Performance on Power Generation in Passive Fuel Cell |
| title_sort | mea preparation for direct formate formic acid fuel cell comparison of palladium black and palladium supported on activated carbon performance on power generation in passive fuel cell |
| topic | formate fuel cell formic acid fuel cell palladium electro-catalyst MEA catalyst coated membrane |
| url | https://www.mdpi.com/2077-0375/10/11/355 |
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