Academic Journal
Thermochemical Activation of Wood with NaOH, KOH and H 3 PO 4 for the Synthesis of Nitrogen-Doped Nanoporous Carbon for Oxygen Reduction Reaction
| العنوان: | Thermochemical Activation of Wood with NaOH, KOH and H 3 PO 4 for the Synthesis of Nitrogen-Doped Nanoporous Carbon for Oxygen Reduction Reaction |
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| المؤلفون: | Galina Dobele, Aleksandrs Volperts, Ance Plavniece, Aivars Zhurinsh, Daina Upskuviene, Aldona Balciunaite, Gediminas Niaura, Luis César Colmenares-Rausseo, Loreta Tamasauskaite-Tamasiunaite, Eugenijus Norkus |
| المصدر: | Molecules, Vol 29, Iss 10, p 2238 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | activated carbons, pyrolysis, hydrothermal treatment, nitrogen doping, ORR, fuel cells, Organic chemistry, QD241-441 |
| الوصف: | Carbonization of biomass residues followed by activation has great potential to become a safe process for the production of various carbon materials for various applications. Demand for commercial use of biomass-based carbon materials is growing rapidly in advanced technologies, including in the energy sector, as catalysts, batteries and capacitor electrodes. In this study, carbon materials were synthesized from hardwood using two carbonization methods, followed by activation with H 3 PO 4 , KOH and NaOH and doping with nitrogen. Their chemical composition, porous structure, thermal stability and structural order of samples were studied. It was shown that, despite the differences, the synthesized carbon materials are active catalysts for oxygen reduction reactions. Among the investigated carbon materials, NaOH-activated samples exhibited the lowest Tafel slope values, of −90.6 and −88.0 mV dec –1 , which are very close to the values of commercial Pt/C at −86.6 mV dec –1 . |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 1420-3049 |
| Relation: | https://www.mdpi.com/1420-3049/29/10/2238; https://doaj.org/toc/1420-3049; https://doaj.org/article/1c38162fd1d84a7895099b03a1279353 |
| DOI: | 10.3390/molecules29102238 |
| الاتاحة: | https://doi.org/10.3390/molecules29102238 https://doaj.org/article/1c38162fd1d84a7895099b03a1279353 |
| رقم الانضمام: | edsbas.287012B6 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 14203049 |
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| DOI: | 10.3390/molecules29102238 |