Commercial platinum group metal-free cathodic electrocatalysts for highly performed direct methanol fuel cell applications
| Autor: | Antonino S. Aricò, Alexey Serov, C. Lo Vecchio, Vincenzo Baglio, Alia M. Lubers, Barr Zulevi, Henry Romero |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
PGM-free catalysts Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry Electrocatalyst 01 natural sciences Redox Cathodic protection Catalysis law.invention fuel cell chemistry.chemical_compound Direct methanol fuel cell law electrocatalysis Electrical and Electronic Engineering Physical and Theoretical Chemistry Rotating disk electrode oxygen reduction reaction Renewable Energy Sustainability and the Environment 021001 nanoscience & nanotechnology Cathode 0104 chemical sciences chemistry Chemical engineering Methanol 0210 nano-technology methanol tolerance |
| Zdroj: | Journal of power sources 437 (2019): 226948. doi:10.1016/j.jpowsour.2019.226948 info:cnr-pdr/source/autori:Lo Vecchio C.; Serov A.; Romero H.; Lubers A.; Zulevi B.; Arico A.S.; Baglio V./titolo:Commercial platinum group metal-free cathodic electrocatalysts for highly performed direct methanol fuel cell applications/doi:10.1016%2Fj.jpowsour.2019.226948/rivista:Journal of power sources (Print)/anno:2019/pagina_da:226948/pagina_a:/intervallo_pagine:226948/volume:437 |
| Popis: | For the first time methanol tolerant Platinum Group Metal-free (PGM-free) Oxygen Reduction Reaction (ORR) electrocatalyst commercially available on market is integrated into the cathodic layer of highly performed Direct Methanol Fuel Cell (DMFC). The intrinsic ORR activity of Fe–N–C electrocatalyst is studied by Rotating Disk Electrode (RDE) technique with and with no methanol added, confirming material inactivity towards Methanol Oxidation Reaction (MOR). The electrocatalyst is tested in DMFC conditions where such important parameters as catalyst:ionomer ratio, concentration of methanol and operational temperature are varied and optimized for highest performance. The obtained activity and methanol tolerance in RDE measurements of commercial Fe–N–C catalyst is found to be comparable with previously reported state-of-the-art PGM-free cathodic materials. Furthermore, this material, used at the cathode compartment of a DMFC, allows reaching the highest power density recorded for PGM-free catalysts in a DMFC until now under similar conditions. |
| Databáze: | OpenAIRE |
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