Electro‐Oxidative Extraction of Methanol from Lignin Using a Three‐Dimensional Graphite Anode
Abstract This paper reports an electrochemical approach that uses lignin as a resource for renewable and sustainable methanol production. The aromatic rings of lignin have methoxy substituents, which can be oxidatively demethylated to methanol by active oxygen produced at the anode. A graphite elect...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-01-01
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| Series: | ChemElectroChem |
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| Online Access: | https://doi.org/10.1002/celc.202400464 |
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| author | Zichun Xiong Kazuyo Kobayashi Aki Miyawaki Shinya Teranishi Yoshiharu Sawada Takashi Hibino |
| author_facet | Zichun Xiong Kazuyo Kobayashi Aki Miyawaki Shinya Teranishi Yoshiharu Sawada Takashi Hibino |
| author_sort | Zichun Xiong |
| collection | DOAJ |
| description | Abstract This paper reports an electrochemical approach that uses lignin as a resource for renewable and sustainable methanol production. The aromatic rings of lignin have methoxy substituents, which can be oxidatively demethylated to methanol by active oxygen produced at the anode. A graphite electrode fabricated in a sponge form provided sufficient reaction space for the lignin feedstock, efficiently generated active oxygen species from water, and considerably suppressed the overoxidation of methanol to carbon dioxide. As a result, the methanol yield reached approximately 70 % at a temperature of 75 °C, atmospheric pressure, and anode potential of +0.57 V. Another advantage of this technique is that hydrogen evolution reaction (HER) occurred at the cathode and the cathode potential was held at approximately −0.5 V during the HER. Therefore, the cell voltage required for lignin electrolysis was 1.1 V or lower, which means that hydrogen as well as methanol was produced under mild conditions. |
| format | Article |
| id | doaj-art-4b58ab391d9f4810ab9777f439827045 |
| institution | Kabale University |
| issn | 2196-0216 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj-art-4b58ab391d9f4810ab9777f4398270452025-01-16T04:43:36ZengWiley-VCHChemElectroChem2196-02162025-01-01122n/an/a10.1002/celc.202400464Electro‐Oxidative Extraction of Methanol from Lignin Using a Three‐Dimensional Graphite AnodeZichun Xiong0Kazuyo Kobayashi1Aki Miyawaki2Shinya Teranishi3Yoshiharu Sawada4Takashi Hibino5Graduate School of Environmental Studies Nagoya University Nagoya 464-8601 JapanGraduate School of Environmental Studies Nagoya University Nagoya 464-8601 JapanSoken, Inc. Nisshin, Aichi 470-0111 JapanSoken, Inc. Nisshin, Aichi 470-0111 JapanTechnical Center Nagoya University Nagoya, Aichi 464-8601 JapanGraduate School of Environmental Studies Nagoya University Nagoya 464-8601 JapanAbstract This paper reports an electrochemical approach that uses lignin as a resource for renewable and sustainable methanol production. The aromatic rings of lignin have methoxy substituents, which can be oxidatively demethylated to methanol by active oxygen produced at the anode. A graphite electrode fabricated in a sponge form provided sufficient reaction space for the lignin feedstock, efficiently generated active oxygen species from water, and considerably suppressed the overoxidation of methanol to carbon dioxide. As a result, the methanol yield reached approximately 70 % at a temperature of 75 °C, atmospheric pressure, and anode potential of +0.57 V. Another advantage of this technique is that hydrogen evolution reaction (HER) occurred at the cathode and the cathode potential was held at approximately −0.5 V during the HER. Therefore, the cell voltage required for lignin electrolysis was 1.1 V or lower, which means that hydrogen as well as methanol was produced under mild conditions.https://doi.org/10.1002/celc.202400464ElectrolysisWaste biomassLigninMethanolHydrogen |
| spellingShingle | Zichun Xiong Kazuyo Kobayashi Aki Miyawaki Shinya Teranishi Yoshiharu Sawada Takashi Hibino Electro‐Oxidative Extraction of Methanol from Lignin Using a Three‐Dimensional Graphite Anode ChemElectroChem Electrolysis Waste biomass Lignin Methanol Hydrogen |
| title | Electro‐Oxidative Extraction of Methanol from Lignin Using a Three‐Dimensional Graphite Anode |
| title_full | Electro‐Oxidative Extraction of Methanol from Lignin Using a Three‐Dimensional Graphite Anode |
| title_fullStr | Electro‐Oxidative Extraction of Methanol from Lignin Using a Three‐Dimensional Graphite Anode |
| title_full_unstemmed | Electro‐Oxidative Extraction of Methanol from Lignin Using a Three‐Dimensional Graphite Anode |
| title_short | Electro‐Oxidative Extraction of Methanol from Lignin Using a Three‐Dimensional Graphite Anode |
| title_sort | electro oxidative extraction of methanol from lignin using a three dimensional graphite anode |
| topic | Electrolysis Waste biomass Lignin Methanol Hydrogen |
| url | https://doi.org/10.1002/celc.202400464 |
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