An Extensive Study of the Production of Hydrogen by Cellulose and Lignin Pyrolysis Using Rhenium-Based Catalysts
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| Publicado en: | Chemistry vol. 7, no. 2 (2025), p. 33 |
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| Autor principal: | |
| Otros Autores: | , , |
| Publicado: |
MDPI AG
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| Materias: | |
| Acceso en línea: | Citation/Abstract Full Text + Graphics Full Text - PDF |
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| Resumen: | The use of rhenium-based catalysts (Re2C, Re3B, ReB2, and ReS2) obtained by mechanosynthesis in the pyrolysis of cellulose and lignin from 500 to 800 °C using 10 and 20 wt.% of catalysts is reported. The mechanosynthesis of ReS2 has been reported for the first time. The catalytic pyrolysis of cellulose resulted in maximum H2 production at 800 °C and 10 wt.% catalyst, with 44% H2 yield using a Re3B catalyst. In contrast, lignin catalytic pyrolysis also showed maximum production under the same conditions, with an 86.1% H2 yield using the NiO/SiO2 catalyst; however, the catalyst did not drastically enhance H2 production. H2 formation by cellulose pyrolysis is a thermocatalytic process, whereas lignin pyrolysis is an entirely thermic process. A reaction mechanism was proposed to explain the H2 formation by both catalytic cellulose and lignin pyrolysis. |
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| ISSN: | 2624-8549 |
| DOI: | 10.3390/chemistry7020033 |
| Fuente: | Materials Science Database |