Flexible and Binder‐Free Iron Phosphide Electrodes Using a Three‐Dimensional Support for High Hydrogen Productivity
Abstract In this work, an inexpensive and reliable microstructured electrode for the hydrogen evolution reaction (HER) is developed. This cathode is made of Earth‐abundant elements consisting of iron phosphide as an electrocatalyst and carbon felt (CF) as a flexible conductive scaffold. Its porous c...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2023-09-01
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| Series: | ChemElectroChem |
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| Online Access: | https://doi.org/10.1002/celc.202201152 |
| _version_ | 1797729030571556864 |
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| author | Dr. María Isabel Díez‐García Dr. Andrés Alberto García Blanco Dr. Sebastian Murcia‐López Marc Botifoll Prof. Jordi Arbiol Dr. Mohammad Qamar Prof. Joan Ramon Morante |
| author_facet | Dr. María Isabel Díez‐García Dr. Andrés Alberto García Blanco Dr. Sebastian Murcia‐López Marc Botifoll Prof. Jordi Arbiol Dr. Mohammad Qamar Prof. Joan Ramon Morante |
| author_sort | Dr. María Isabel Díez‐García |
| collection | DOAJ |
| description | Abstract In this work, an inexpensive and reliable microstructured electrode for the hydrogen evolution reaction (HER) is developed. This cathode is made of Earth‐abundant elements consisting of iron phosphide as an electrocatalyst and carbon felt (CF) as a flexible conductive scaffold. Its porous character and binder‐free FeP coverage over the carbon fibers generate a high number of accessible active sites for the reaction, achieving a high value of the electrochemically active surface area. The electrode reaches 100 mA ⋅ cm−2 by applying only −53 mV vs RHE at 50 °C in 0.5 M H2SO4, demonstrating excellent electrocatalytic activity for the HER and outstanding stability in acidic electrolyte. Furthermore, the feasibility of these electrodes for industrial application is evaluated using a PEM electrolyzer. The developed prototype with a cathodic area of 1.8 cm2 shows a very promising performance, reaching 14.9 mmol H2 ⋅ h−1 ⋅ cm−2 (corresponding to 800 mA ⋅ cm−2) at a voltage of only 2.1 V. |
| first_indexed | 2024-03-12T11:23:04Z |
| format | Article |
| id | doaj.art-69c8a936d00b48ce945114782dc97fae |
| institution | Directory Open Access Journal |
| issn | 2196-0216 |
| language | English |
| last_indexed | 2024-03-12T11:23:04Z |
| publishDate | 2023-09-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj.art-69c8a936d00b48ce945114782dc97fae2023-09-01T13:22:37ZengWiley-VCHChemElectroChem2196-02162023-09-011017n/an/a10.1002/celc.202201152Flexible and Binder‐Free Iron Phosphide Electrodes Using a Three‐Dimensional Support for High Hydrogen ProductivityDr. María Isabel Díez‐García0Dr. Andrés Alberto García Blanco1Dr. Sebastian Murcia‐López2Marc Botifoll3Prof. Jordi Arbiol4Dr. Mohammad Qamar5Prof. Joan Ramon Morante6Catalonia Institute for Energy Research (IREC) Jardins de les Dones de Negre 1 08930 Sant Adrià del Besòs Barcelona SpainCatalonia Institute for Energy Research (IREC) Jardins de les Dones de Negre 1 08930 Sant Adrià del Besòs Barcelona SpainCatalonia Institute for Energy Research (IREC) Jardins de les Dones de Negre 1 08930 Sant Adrià del Besòs Barcelona SpainCatalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Catalonia SpainCatalan Institute of Nanoscience and Nanotechnology (ICN2) CSIC and BIST Campus UAB Bellaterra 08193 Barcelona Catalonia SpainInterdisciplinary Research Center for Hydrogen and Energy Storage King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi ArabiaCatalonia Institute for Energy Research (IREC) Jardins de les Dones de Negre 1 08930 Sant Adrià del Besòs Barcelona SpainAbstract In this work, an inexpensive and reliable microstructured electrode for the hydrogen evolution reaction (HER) is developed. This cathode is made of Earth‐abundant elements consisting of iron phosphide as an electrocatalyst and carbon felt (CF) as a flexible conductive scaffold. Its porous character and binder‐free FeP coverage over the carbon fibers generate a high number of accessible active sites for the reaction, achieving a high value of the electrochemically active surface area. The electrode reaches 100 mA ⋅ cm−2 by applying only −53 mV vs RHE at 50 °C in 0.5 M H2SO4, demonstrating excellent electrocatalytic activity for the HER and outstanding stability in acidic electrolyte. Furthermore, the feasibility of these electrodes for industrial application is evaluated using a PEM electrolyzer. The developed prototype with a cathodic area of 1.8 cm2 shows a very promising performance, reaching 14.9 mmol H2 ⋅ h−1 ⋅ cm−2 (corresponding to 800 mA ⋅ cm−2) at a voltage of only 2.1 V.https://doi.org/10.1002/celc.202201152carbon felthydrogen evolution reactionFeP nanoparticlesPEM electrolyzerwater splitting |
| spellingShingle | Dr. María Isabel Díez‐García Dr. Andrés Alberto García Blanco Dr. Sebastian Murcia‐López Marc Botifoll Prof. Jordi Arbiol Dr. Mohammad Qamar Prof. Joan Ramon Morante Flexible and Binder‐Free Iron Phosphide Electrodes Using a Three‐Dimensional Support for High Hydrogen Productivity ChemElectroChem carbon felt hydrogen evolution reaction FeP nanoparticles PEM electrolyzer water splitting |
| title | Flexible and Binder‐Free Iron Phosphide Electrodes Using a Three‐Dimensional Support for High Hydrogen Productivity |
| title_full | Flexible and Binder‐Free Iron Phosphide Electrodes Using a Three‐Dimensional Support for High Hydrogen Productivity |
| title_fullStr | Flexible and Binder‐Free Iron Phosphide Electrodes Using a Three‐Dimensional Support for High Hydrogen Productivity |
| title_full_unstemmed | Flexible and Binder‐Free Iron Phosphide Electrodes Using a Three‐Dimensional Support for High Hydrogen Productivity |
| title_short | Flexible and Binder‐Free Iron Phosphide Electrodes Using a Three‐Dimensional Support for High Hydrogen Productivity |
| title_sort | flexible and binder free iron phosphide electrodes using a three dimensional support for high hydrogen productivity |
| topic | carbon felt hydrogen evolution reaction FeP nanoparticles PEM electrolyzer water splitting |
| url | https://doi.org/10.1002/celc.202201152 |
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