Clean H<sub>2</sub> Production by Lignin-Assisted Electrolysis in a Polymer Electrolyte Membrane Flow Reactor
Biomass-derived products, such as lignin, are interesting resources for energetic purposes. Lignin is a natural polymer that, when added to the anode of an alkaline exchange membrane water electrolyser, enhances H<sub>2</sub> production rates and efficiencies due to the substitution of t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/9/3525 |
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| author | José-Enrique Rodríguez-Fernández María Rojo Juan Ramón Avilés-Moreno Pilar Ocón |
| author_facet | José-Enrique Rodríguez-Fernández María Rojo Juan Ramón Avilés-Moreno Pilar Ocón |
| author_sort | José-Enrique Rodríguez-Fernández |
| collection | DOAJ |
| description | Biomass-derived products, such as lignin, are interesting resources for energetic purposes. Lignin is a natural polymer that, when added to the anode of an alkaline exchange membrane water electrolyser, enhances H<sub>2</sub> production rates and efficiencies due to the substitution of the oxygen evolution reaction. Higher efficiencies are reported when different catalytic materials are employed for constructing the lignin anolyte, demonstrating that lower catalytic loadings for the anode improves the H<sub>2</sub> production when compared to higher loadings. Furthermore, when a potential of −1.8 V is applied, higher gains are obtained than when −2.3 V is applied. An increase of 200% of H<sub>2</sub> flow rates with respect to water electrolysis is reported when commercial lignin is used coupled with Pt-Ru at 0.09 mg cm<sup>−2</sup> and E = −1.8 V is applied at the cathode. This article provides deep information about the oxidation process, as well as an optimisation of the method of the lignin electro-oxidation in a flow-reactor as a pre-step for an industrial implementation. |
| first_indexed | 2024-03-11T04:13:19Z |
| format | Article |
| id | doaj.art-8d6a7c4df03f4bfb99f5288c732a4010 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T04:13:19Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-8d6a7c4df03f4bfb99f5288c732a40102023-11-17T23:17:16ZengMDPI AGMaterials1996-19442023-05-01169352510.3390/ma16093525Clean H<sub>2</sub> Production by Lignin-Assisted Electrolysis in a Polymer Electrolyte Membrane Flow ReactorJosé-Enrique Rodríguez-Fernández0María Rojo1Juan Ramón Avilés-Moreno2Pilar Ocón3Departamento de Química Física Aplicada, Universidad Autónoma de Madrid (UAM), C/Francisco Tomás y Valiente 7, 28049 Madrid, SpainDepartamento de Química Física Aplicada, Universidad Autónoma de Madrid (UAM), C/Francisco Tomás y Valiente 7, 28049 Madrid, SpainDepartamento de Química Física Aplicada, Universidad Autónoma de Madrid (UAM), C/Francisco Tomás y Valiente 7, 28049 Madrid, SpainDepartamento de Química Física Aplicada, Universidad Autónoma de Madrid (UAM), C/Francisco Tomás y Valiente 7, 28049 Madrid, SpainBiomass-derived products, such as lignin, are interesting resources for energetic purposes. Lignin is a natural polymer that, when added to the anode of an alkaline exchange membrane water electrolyser, enhances H<sub>2</sub> production rates and efficiencies due to the substitution of the oxygen evolution reaction. Higher efficiencies are reported when different catalytic materials are employed for constructing the lignin anolyte, demonstrating that lower catalytic loadings for the anode improves the H<sub>2</sub> production when compared to higher loadings. Furthermore, when a potential of −1.8 V is applied, higher gains are obtained than when −2.3 V is applied. An increase of 200% of H<sub>2</sub> flow rates with respect to water electrolysis is reported when commercial lignin is used coupled with Pt-Ru at 0.09 mg cm<sup>−2</sup> and E = −1.8 V is applied at the cathode. This article provides deep information about the oxidation process, as well as an optimisation of the method of the lignin electro-oxidation in a flow-reactor as a pre-step for an industrial implementation.https://www.mdpi.com/1996-1944/16/9/3525green H<sub>2</sub>ligninelectrochemistryadditivesassisted-electrolysisphysicochemical characterisation |
| spellingShingle | José-Enrique Rodríguez-Fernández María Rojo Juan Ramón Avilés-Moreno Pilar Ocón Clean H<sub>2</sub> Production by Lignin-Assisted Electrolysis in a Polymer Electrolyte Membrane Flow Reactor Materials green H<sub>2</sub> lignin electrochemistry additives assisted-electrolysis physicochemical characterisation |
| title | Clean H<sub>2</sub> Production by Lignin-Assisted Electrolysis in a Polymer Electrolyte Membrane Flow Reactor |
| title_full | Clean H<sub>2</sub> Production by Lignin-Assisted Electrolysis in a Polymer Electrolyte Membrane Flow Reactor |
| title_fullStr | Clean H<sub>2</sub> Production by Lignin-Assisted Electrolysis in a Polymer Electrolyte Membrane Flow Reactor |
| title_full_unstemmed | Clean H<sub>2</sub> Production by Lignin-Assisted Electrolysis in a Polymer Electrolyte Membrane Flow Reactor |
| title_short | Clean H<sub>2</sub> Production by Lignin-Assisted Electrolysis in a Polymer Electrolyte Membrane Flow Reactor |
| title_sort | clean h sub 2 sub production by lignin assisted electrolysis in a polymer electrolyte membrane flow reactor |
| topic | green H<sub>2</sub> lignin electrochemistry additives assisted-electrolysis physicochemical characterisation |
| url | https://www.mdpi.com/1996-1944/16/9/3525 |
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