Enhanced hydrogen production via methanolysis and energy storage on novel poplar sawdust-based biomass-derived activated carbon catalyst
The originality of our current work is based on the use of $ H_{3} $$ PO_{4} $ functionalized waste poplar sawdust as a supercapacitor electrode material and catalyst for $ NaBH_{4} $ methanolysis reaction. $ N_{2} $ adsorption–desorption, scanning electron microscopy with energy-dispersive X-ray spectrometry (SEM–EDX), Fourier-transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD) are utilized for characterization of the activated carbon (AC). In the first stage of our study, the effect of $ H_{3} $$ PO_{4} $ ratios and carbonization temperature on the hydrogen generation rate (HGR) is investigated and optimized. The optimum $ H_{3} $$ PO_{4} $ and carbonization temperature for $ NaBH_{4} $ methanolysis on AC are determined as 4:1 and 600 °C, respectively. The optimum points for the methanol concentration, $ NaBH_{4} $ concentration, reaction temperature, and catalyst amount affecting the HGR values for the methanolysis reaction on the KV4-600 catalyst under these conditions are determined as 4 ml, 1.25 wt% $ NaBH_{4} $, 60 °C, and 50 mg, respectively. Moreover, the HGR, activation energy, and the reaction completion duration under optimized reaction conditions are obtained as 19,050.00 mL $ min^{−1} $ $ g_{cat} $−1, 11.76 kJ $ mol^{−1} $, and 60 s, respectively. The performance of the KV4-600 as a supercapacitor electrode material is evaluated by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). The specific capacitance of the KV4-600 at a specific current of 0.25 A $ g^{−1} $ is found to be 161.15 F $ g^{−1} $. KV4-600 shows satisfactory results both as supercapacitor electrode material and as catalyst for $ NaBH_{4} $ methanolysis. Graphical Abstract.
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Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:53 |
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| Enthalten in: |
Journal of applied electrochemistry - 53(2023), 8 vom: 14. März, Seite 1643-1655 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Kaya, Sefika [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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© The Author(s), under exclusive licence to Springer Nature B.V. 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| doi: |
10.1007/s10800-023-01873-4 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a Enhanced hydrogen production via methanolysis and energy storage on novel poplar sawdust-based biomass-derived activated carbon catalyst |
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| 520 | |a The originality of our current work is based on the use of $ H_{3} $$ PO_{4} $ functionalized waste poplar sawdust as a supercapacitor electrode material and catalyst for $ NaBH_{4} $ methanolysis reaction. $ N_{2} $ adsorption–desorption, scanning electron microscopy with energy-dispersive X-ray spectrometry (SEM–EDX), Fourier-transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD) are utilized for characterization of the activated carbon (AC). In the first stage of our study, the effect of $ H_{3} $$ PO_{4} $ ratios and carbonization temperature on the hydrogen generation rate (HGR) is investigated and optimized. The optimum $ H_{3} $$ PO_{4} $ and carbonization temperature for $ NaBH_{4} $ methanolysis on AC are determined as 4:1 and 600 °C, respectively. The optimum points for the methanol concentration, $ NaBH_{4} $ concentration, reaction temperature, and catalyst amount affecting the HGR values for the methanolysis reaction on the KV4-600 catalyst under these conditions are determined as 4 ml, 1.25 wt% $ NaBH_{4} $, 60 °C, and 50 mg, respectively. Moreover, the HGR, activation energy, and the reaction completion duration under optimized reaction conditions are obtained as 19,050.00 mL $ min^{−1} $ $ g_{cat} $−1, 11.76 kJ $ mol^{−1} $, and 60 s, respectively. The performance of the KV4-600 as a supercapacitor electrode material is evaluated by cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). The specific capacitance of the KV4-600 at a specific current of 0.25 A $ g^{−1} $ is found to be 161.15 F $ g^{−1} $. KV4-600 shows satisfactory results both as supercapacitor electrode material and as catalyst for $ NaBH_{4} $ methanolysis. Graphical Abstract | ||
| 650 | 4 | |a Hydrogen | |
| 650 | 4 | |a NaBH | |
| 650 | 4 | |a methanolysis | |
| 650 | 4 | |a Supercapacitor | |
| 650 | 4 | |a Catalyst | |
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| 700 | 1 | |a Ulas, Berdan |4 aut | |
| 700 | 1 | |a Demir, Izge |4 aut | |
| 700 | 1 | |a Kivrak, Hilal |4 aut | |
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